Qianqian Fang, Ph.D. - Publications

Affiliations: 
2005 Dartmouth College, Hanover, NH, United States 
Area:
Biomedical Engineering

80 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2023 Hirvi P, Kuutela T, Fang Q, Hannukainen A, Hyvonen N, Nissilä I. Effects of atlas-based anatomy on modelled light transport in the neonatal head. Physics in Medicine and Biology. PMID 37167982 DOI: 10.1088/1361-6560/acd48c  0.34
2023 Vanegas M, Mireles M, Xu E, Yan S, Fang Q. Compact breast shape acquisition system for improving diffuse optical tomography image reconstructions. Biomedical Optics Express. 14: 1579-1593. PMID 37078036 DOI: 10.1364/BOE.481092  0.373
2022 Muldoon A, Kabeer A, Cormier J, Saksena MA, Fang Q, Carp SA, Deng B. Method to improve the localization accuracy and contrast recovery of lesions in separately acquired X-ray and diffuse optical tomographic breast imaging. Biomedical Optics Express. 13: 5295-5310. PMID 36425617 DOI: 10.1364/BOE.470373  0.371
2022 An Z, Xu C, Qian K, Han J, Tan W, Wang D, Fang Q. EIEN: Endoscopic Image Enhancement Network Based on Retinex Theory. Sensors (Basel, Switzerland). 22. PMID 35891145 DOI: 10.3390/s22145464  0.336
2020 Yan S, Yao R, Intes X, Fang Q. Accelerating Monte Carlo modeling of structured-light-based diffuse optical imaging via "photon sharing". Optics Letters. 45: 2842-2845. PMID 32412482 DOI: 10.1364/Ol.390618  0.443
2019 Fang Q, Yan S. Graphics processing unit-accelerated mesh-based Monte Carlo photon transport simulations. Journal of Biomedical Optics. 24: 1-6. PMID 31746154 DOI: 10.1117/1.Jbo.24.11.115002  0.35
2019 Yan S, Tran AP, Fang Q. Dual-grid mesh-based Monte Carlo algorithm for efficient photon transport simulations in complex three-dimensional media. Journal of Biomedical Optics. 24: 1-4. PMID 30788914 DOI: 10.1117/1.Jbo.24.2.020503  0.362
2018 Yuan Y, Yu L, Doğan Z, Fang Q. Graphics processing units-accelerated adaptive nonlocal means filter for denoising three-dimensional Monte Carlo photon transport simulations. Journal of Biomedical Optics. 23: 1-9. PMID 30499265 DOI: 10.1117/1.Jbo.23.12.121618  0.326
2018 Yao R, Intes X, Fang Q. Direct approach to compute Jacobians for diffuse optical tomography using perturbation Monte Carlo-based photon "replay". Biomedical Optics Express. 9: 4588-4603. PMID 30319888 DOI: 10.1364/Boe.9.004588  0.432
2018 Horn A, Li N, Dembek TA, Kappel A, Boulay C, Ewert S, Tietze A, Husch A, Perera T, Neumann WJ, Reisert M, Si H, Oostenveld R, Rorden C, Yeh FC, ... Fang Q, et al. Lead-DBS v2: Towards a comprehensive pipeline for deep brain stimulation imaging. Neuroimage. PMID 30179717 DOI: 10.1016/J.Neuroimage.2018.08.068  0.403
2018 Deng B, Lundqvist M, Fang Q, Carp SA. Impact of errors in experimental parameters on reconstructed breast images using diffuse optical tomography. Biomedical Optics Express. 9: 1130-1150. PMID 29541508 DOI: 10.1364/Boe.9.001130  0.486
2018 Yu L, Nina-Paravecino F, Kaeli D, Fang Q. Scalable and massively parallel Monte Carlo photon transport simulations for heterogeneous computing platforms. Journal of Biomedical Optics. 23: 1-4. PMID 29374404 DOI: 10.1117/1.Jbo.23.1.010504  0.301
2017 Zimmermann BB, Deng B, Singh B, Martino M, Selb J, Fang Q, Sajjadi AY, Cormier J, Moore RH, Kopans DB, Boas DA, Saksena MA, Carp SA. Multimodal breast cancer imaging using coregistered dynamic diffuse optical tomography and digital breast tomosynthesis. Journal of Biomedical Optics. 22: 46008. PMID 28447102 DOI: 10.1117/1.Jbo.22.4.046008  0.485
2017 Sajjadi AY, Isakoff SJ, Deng B, Singh B, Wanyo CM, Fang Q, Specht MC, Schapira L, Moy B, Bardia A, Boas DA, Carp SA. Normalization of compression-induced hemodynamics in patients responding to neoadjuvant chemotherapy monitored by dynamic tomographic optical breast imaging (DTOBI). Biomedical Optics Express. 8: 555-569. PMID 28270967 DOI: 10.1364/Boe.8.000555  0.418
2016 Verleker AP, Shaffer M, Fang Q, Choi MR, Clare S, Stantz KM. Optical dosimetry probes to validate Monte Carlo and empirical-method-based NIR dose planning in the brain. Applied Optics. 55: 9875-9888. PMID 27958483 DOI: 10.1364/Ao.55.009875  0.339
2016 Yao R, Intes X, Fang Q. Generalized mesh-based Monte Carlo for wide-field illumination and detection via mesh retessellation. Biomedical Optics Express. 7: 171-84. PMID 26819826 DOI: 10.1364/Boe.7.000171  0.376
2016 Zimmermann BB, Fang Q, Boas DA, Carp SA. Frequency domain near-infrared multiwavelength imager design using high-speed, direct analog-to-digital conversion. Journal of Biomedical Optics. 21: 16010. PMID 26813081 DOI: 10.1117/1.Jbo.21.1.016010  0.435
2016 Zhan S, Fang Q. Image super-resolution based on edge-enhancement and multi-dictionary learning Guangdian Gongcheng/Opto-Electronic Engineering. 43: 40-47. DOI: 10.3969/j.issn.1003-501X.2016.04.007  0.329
2016 Deng B, Fang Q, Boas DA, Carp S. Impact of Experimental Parameter Errors on Reconstructed Breast Images Using Diffuse Optical Tomography Biomedical Optics. DOI: 10.1364/Ots.2016.Oth3C.7  0.459
2016 Deng B, Brooks D, Boas DA, Lundqvist M, Fang Q. Characterization of Breast Lesions Using Structural Prior-Guided Optical Tomography on the Realistic Breast Model – DigiBreast Biomedical Optics. DOI: 10.1364/Ots.2016.Oth3C.4  0.44
2016 Zimmermann BB, Deng B, Singh B, Fang Q, Boas DA, Carp SA. Dynamic Phantom Measurements to Validate a Tomographic Optical Breast Imaging System Cancer. DOI: 10.1364/Cancer.2016.Jtu3A.7  0.499
2016 Singh B, Zimmerman B, Deng B, Fang Q, Boas D, Cormier J, Moore R, Kopans D, Saksena M, Carp S. Integrated Near-infrared Diffuse Optical Imaging and Digital Breast Tomography for monitoring compression induced hemodynamics in breast cancer patients Cancer. DOI: 10.1364/Cancer.2016.Jtu3A.38  0.433
2016 Inácio DC, Deng B, Kopans D, Boas DA, Fang Q. Automatically finding tumors using structural-prior guided optical tomography Cancer. DOI: 10.1364/Cancer.2016.Cth4A.4  0.421
2015 Deng B, Fradkin M, Rouet JM, Moore RH, Kopans DB, Boas DA, Lundqvist M, Fang Q. Characterizing breast lesions through robust multimodal data fusion using independent diffuse optical and x-ray breast imaging. Journal of Biomedical Optics. 20: 80502. PMID 26263413 DOI: 10.1117/1.Jbo.20.8.080502  0.447
2015 Deng B, Brooks DH, Boas DA, Lundqvist M, Fang Q. Characterization of structural-prior guided optical tomography using realistic breast models derived from dual-energy x-ray mammography. Biomedical Optics Express. 6: 2366-79. PMID 26203367 DOI: 10.1364/Boe.6.002366  0.488
2015 Gagnon L, Sakadži? S, Lesage F, Mandeville ET, Fang Q, Yaseen MA, Boas DA. Multimodal reconstruction of microvascular-flow distributions using combined two-photon microscopy and Doppler optical coherence tomography. Neurophotonics. 2: 015008. PMID 26157987 DOI: 10.1117/1.Nph.2.1.015008  0.342
2015 Verleker AP, Fang Q, Choi MR, Clare SE, Stantz KM. An empirical approach to estimate near-infra-red photon propagation and optically induced drug release in brain tissues Proceedings of Spie. 9308. DOI: 10.1117/12.2079991  0.328
2015 Deng B, Fradkin M, Rouet JM, Moore RH, Kopans DB, Boas DA, Lundqvist M, Fang Q. Characterizing breast lesions through robust multimodal data fusion using independent diffuse optical and x-ray breast imaging Journal of Biomedical Optics. 20. DOI: 10.1117/1.JBO.20.8.080502  0.309
2014 Sajjadi AY, Isakoff SJ, Wanyo CM, Fang Q, Specht MC, Schapira L, Moy B, Bardia A, Boas DA, Carp SA. Predicting Response to Neoadjuvant Chemotherapy in Breast Cancer Patients Using Dynamic Tomographic Optical Breast imaging (DTOBI) Ieee Transactions On Biomedical Engineering. DOI: 10.1364/Biomed.2014.Bw4B.5  0.383
2014 Fang Q, Deng B, Carp SA, Moore RH, Kopans DB, Boas DA. An 8-year clinical study of combining optical breast imaging with x-ray mammography for tumor diagnosis Ieee Transactions On Biomedical Engineering. DOI: 10.1364/Biomed.2014.Bw4B.1  0.416
2014 Deng B, Fradkin M, Kopans DB, Boas DA, Aslund M, Fang Q. Characterizing breast lesions using functional optical imaging guided by an independent X-ray mammogram Ieee Transactions On Biomedical Engineering. DOI: 10.1364/Biomed.2014.Bm3A.65  0.474
2014 Zimmermann BB, Martino M, Sajjadi A, Fang Q, Boas DA, Carp SA. A novel tomographic optical breast imaging system to simultaneously co-register x-ray tomosynthesis Ieee Transactions On Biomedical Engineering. DOI: 10.1364/Biomed.2014.Bm3A.64  0.431
2014 Sajjadi AY, Martino M, Fang Q, Boas D, Carp S. Monte Carlo simulations of realistic transmission breast optical tomography data to estimate the impact of errors in experimental parameters on reconstructed images Ieee Transactions On Biomedical Engineering. DOI: 10.1364/Biomed.2014.Bm3A.63  0.474
2013 Carp SA, Sajjadi AY, Wanyo CM, Fang Q, Specht MC, Schapira L, Moy B, Bardia A, Boas DA, Isakoff SJ. Hemodynamic signature of breast cancer under fractional mammographic compression using a dynamic diffuse optical tomography system. Biomedical Optics Express. 4: 2911-24. PMID 24409390 DOI: 10.1364/Boe.4.002911  0.359
2013 Fradkin M, Hofmann MC, Rouet JM, Moore RH, Kopans DB, Tipton K, Suryanarayanan S, Boas DA, Fang Q. Diagnosing breast cancer using independent diffuse optical tomography and x-ray mammography scans Progress in Biomedical Optics and Imaging - Proceedings of Spie. 8574. DOI: 10.1117/12.2005649  0.514
2013 Selb J, Ogden TM, Dubb J, Fang Q, Boas DA. Systematic evaluation of a time-domain Monte Carlo fitting routine to estimate the adult brain optical properties Progress in Biomedical Optics and Imaging - Proceedings of Spie. 8578. DOI: 10.1117/12.2005323  0.356
2013 Sajjadi AY, Wanyo CM, Fang Q, Boas DA, Isakoff SJ, Carp SA. Dynamic optical breast imaging for neoadjuvant therapy monitoring Progress in Biomedical Optics and Imaging - Proceedings of Spie. 8578. DOI: 10.1117/12.2004884  0.429
2012 Fang Q, Kaeli DR. Accelerating mesh-based Monte Carlo method on modern CPU architectures. Biomedical Optics Express. 3: 3223-30. PMID 23243572 DOI: 10.1364/Boe.3.003223  0.335
2012 Chen J, Fang Q, Intes X. Mesh-based Monte Carlo method in time-domain widefield fluorescence molecular tomography. Journal of Biomedical Optics. 17: 106009. PMID 23224008 DOI: 10.1117/1.Jbo.17.10.106009  0.338
2012 Cooper RJ, Caffini M, Dubb J, Fang Q, Custo A, Tsuzuki D, Fischl B, Wells W, Dan I, Boas DA. Validating atlas-guided DOT: a comparison of diffuse optical tomography informed by atlas and subject-specific anatomies. Neuroimage. 62: 1999-2006. PMID 22634215 DOI: 10.1016/J.Neuroimage.2012.05.031  0.371
2012 Carp S, Wanyo CM, Fang Q, Boas D, Isakoff SJ. Neoadjuvant Chemotherapy Monitoring using Dynamic Breast Compression Imaging Ieee Transactions On Biomedical Engineering. DOI: 10.1364/Biomed.2012.Bw3A.7  0.402
2012 Fang Q, Carp S, Martino M, Moore RH, Kopans DB, Boas D. Joint image reconstruction for breast tumor diagnosis using both structural and functional information Ieee Transactions On Biomedical Engineering. DOI: 10.1364/Biomed.2012.Bw3A.2  0.465
2012 Martino M, Fang Q, Boas D, Carp S. Monte Carlo simulation of realistic transmission breast optical tomography data for optimization of finite element image reconstruction Ieee Transactions On Biomedical Engineering. DOI: 10.1364/Biomed.2012.Bsu3A.97  0.462
2012 Fang Q. Quantitative diffuse optical tomography using a mobile phone camera and automatic 3D photo stitching Biomedical Optics, Biomed 2012. DOI: 10.1364/Biomed.2012.Bsu3A.96  0.423
2011 Baraghis E, Devor A, Fang Q, Srinivasan VJ, Wu W, Lesage F, Ayata C, Kasischke KA, Boas DA, Sakadzić S. Two-photon microscopy of cortical NADH fluorescence intensity changes: correcting contamination from the hemodynamic response. Journal of Biomedical Optics. 16: 106003. PMID 22029350 DOI: 10.1117/1.3633339  0.354
2011 Fang Q. Comment on "A study on tetrahedron-based inhomogeneous Monte-Carlo optical simulation". Biomedical Optics Express. 2: 1258-64. PMID 21559136 DOI: 10.1364/Boe.2.001258  0.369
2011 Fang Q, Selb J, Carp SA, Boverman G, Miller EL, Brooks DH, Moore RH, Kopans DB, Boas DA. Combined optical and X-ray tomosynthesis breast imaging. Radiology. 258: 89-97. PMID 21062924 DOI: 10.1148/Radiol.10082176  0.445
2010 Fang Q, Moore RH, Kopans DB, Boas DA. Compositional-prior-guided image reconstruction algorithm for multi-modality imaging. Biomedical Optics Express. 1: 223-235. PMID 21258460 DOI: 10.1364/Boe.1.000223  0.541
2010 Fang Q. Mesh-based Monte Carlo method using fast ray-tracing in Plücker coordinates. Biomedical Optics Express. 1: 165-75. PMID 21170299 DOI: 10.1364/Boe.1.000165  0.417
2010 Fang Q, Meaney PM, Paulsen KD. Viable Three-Dimensional Medical Microwave Tomography: Theory and Numerical Experiments. Ieee Transactions On Antennas and Propagation. 58: 449-458. PMID 20352084 DOI: 10.1109/Tap.2009.2037691  0.647
2010 Fang Q, Carp SA, Moore RH, Kopans DB, Boas DA. Imaging Benign and Malignant Breast Lesions with Combined Optical Imaging and Tomosynthesis Ieee Transactions On Biomedical Engineering. DOI: 10.1364/Biomed.2010.Bsub1  0.429
2010 Fang Q, Boas DA. GPU accelerated Monte Carlo simulation for 3D photon migration Ieee Transactions On Biomedical Engineering. DOI: 10.1364/Biomed.2010.Bme5  0.301
2010 Carp SA, Roche-Labarbe N, Fang Q, Selb JJ, Boas DA. Multi-Modality Imaging of the Compressed Breast Ieee Transactions On Biomedical Engineering. DOI: 10.1364/Biomed.2010.Bmb2  0.491
2009 Fang Q, Boas DA. Monte Carlo simulation of photon migration in 3D turbid media accelerated by graphics processing units. Optics Express. 17: 20178-90. PMID 19997242 DOI: 10.1364/Oe.17.020178  0.411
2009 Fang Q, Carp SA, Selb J, Boverman G, Zhang Q, Kopans DB, Moore RH, Miller EL, Brooks DH, Boas DA. Combined optical imaging and mammography of the healthy breast: optical contrast derived from breast structure and compression. Ieee Transactions On Medical Imaging. 28: 30-42. PMID 19116186 DOI: 10.1109/Tmi.2008.925082  0.507
2008 Carp SA, Selb J, Fang Q, Moore R, Kopans DB, Rafferty E, Boas DA. Dynamic functional and mechanical response of breast tissue to compression. Optics Express. 16: 16064-78. PMID 18825246 DOI: 10.1364/Oe.16.016064  0.31
2008 Boverman G, Miller EL, Brooks DH, Isaacson D, Fang Q, Boas DA. Estimation and statistical bounds for three-dimensional polar shapes in diffuse optical tomography. Ieee Transactions On Medical Imaging. 27: 752-65. PMID 18541483 DOI: 10.1109/Tmi.2007.911492  0.388
2008 Fang Q, Carp SA, Selb J, Moore R, Kopans DB, Miller EL, Brooks DH, Boas DA. Spectrally Constrained Optical Breast Imaging with Co-registered X-Ray Tomosynthesis Ieee Transactions On Biomedical Engineering. DOI: 10.1364/Biomed.2008.Bsub2  0.507
2008 Fang Q, Carp SA, Selb J, Moore R, Kopans DB, Miller EL, Brooks DH, Boas DA. A Multi-Modality Image Reconstruction Platform for Diffuse Optical Tomography Ieee Transactions On Biomedical Engineering. DOI: 10.1364/Biomed.2008.Bmd24  0.454
2007 Boverman G, Fang Q, Carp SA, Miller EL, Brooks DH, Selb J, Moore RH, Kopans DB, Boas DA. Spatio-temporal imaging of the hemoglobin in the compressed breast with diffuse optical tomography. Physics in Medicine and Biology. 52: 3619-41. PMID 17664563 DOI: 10.1088/0031-9155/52/12/018  0.509
2007 Meaney PM, Fang Q, Rubaek T, Demidenko E, Paulsen KD. Log transformation benefits parameter estimation in microwave tomographic imaging. Medical Physics. 34: 2014-23. PMID 17654905 DOI: 10.1118/1.2737264  0.67
2007 Meaney PM, Fanning MW, Raynolds T, Fox CJ, Fang Q, Kogel CA, Poplack SP, Paulsen KD. Initial clinical experience with microwave breast imaging in women with normal mammography. Academic Radiology. 14: 207-18. PMID 17236994 DOI: 10.1016/J.Acra.2006.10.016  0.654
2007 Boverman G, Miller EL, Brooks DH, Fang Q, Carp SA, Selb JJ, Boas DA. Reconstruction of tissue dynamics in the compressed breast using multiplexed measurements and temporal basis functions Progress in Biomedical Optics and Imaging - Proceedings of Spie. 6434. DOI: 10.1117/12.708306  0.52
2007 Fang Q, Selb J, Carp SA, Boverman G, Kopans DB, Moore RH, Boas DA. Clinical data analysis for the combined optical and tome-synthesis breast imaging Progress in Biomedical Optics and Imaging - Proceedings of Spie. 6431. DOI: 10.1117/12.701623  0.502
2006 Carp SA, Kauffman T, Fang Q, Rafferty E, Moore R, Kopans D, Boas D. Compression-induced changes in the physiological state of the breast as observed through frequency domain photon migration measurements. Journal of Biomedical Optics. 11: 064016. PMID 17212539 DOI: 10.1117/1.2397572  0.411
2006 Fang Q, Meaney PM, Paulsen KD. The multidimensional phase unwrapping integral and applications to microwave tomographical image reconstruction. Ieee Transactions On Image Processing : a Publication of the Ieee Signal Processing Society. 15: 3311-24. PMID 17076392 DOI: 10.1109/Tip.2006.881999  0.616
2006 Carp SA, Kauffman T, Fang Q, Rafferty E, Kopans D, Boas D. Compression induced changes in the physiological state of the breast as derived from combined frequency domain photon migration and white light spectroscopy measurements Biosilico. DOI: 10.1364/Bio.2006.Sd7  0.368
2006 Fang Q, Boas D, Boverman G, Zhang Q, Kauffman T. Nonlinear image reconstruction algorithm for diffuse optical tomography using iterative block solver and automatic mesh generation from tomosynthesis images Biomedical Optics. 6081. DOI: 10.1117/12.662689  0.482
2006 Fang Q, Meaney PM, Paulsen KD. Singular value analysis of the Jacobian matrix in microwave image reconstruction Ieee Transactions On Antennas and Propagation. 54: 2371-2380. DOI: 10.1109/Tap.2006.879192  0.632
2005 Meaney PM, Fang Q, Paulsen KD. Data collection strategies and their impact on 3D microwave imaging of the breast Ieee Antennas and Propagation Society, Ap-S International Symposium (Digest). 1: 183-186. DOI: 10.1109/APS.2005.1551516  0.641
2005 Fang Q, Wang B. An improved micro-optical image mosaic method based on ratio template matching Jisuanji Gongcheng/Computer Engineering. 31.  0.366
2004 Meaney PM, Fox CJ, Fang Q, Kogel C, Poplack SP, Pogue BW, Paulsen KD. Comparison of fibroglandular tissue distributions for microwave tomographic breast images with complementary MR T2 weighted images. Conference Proceedings : ... Annual International Conference of the Ieee Engineering in Medicine and Biology Society. Ieee Engineering in Medicine and Biology Society. Annual Conference. 2: 1314-6. PMID 17271933 DOI: 10.1109/IEMBS.2004.1403413  0.653
2004 Fang Q, Meaney PM, Geimer SD, Streltsov AV, Paulsen KD. Microwave image reconstruction from 3-D fields coupled to 2-D parameter estimation. Ieee Transactions On Medical Imaging. 23: 475-84. PMID 15084072 DOI: 10.1109/Tmi.2004.824152  0.635
2004 Fang Q, Meaney PM, Paulsen KD. Microwave image reconstruction of tissue property dispersion characteristics utilizing multiple-frequency information Ieee Transactions On Microwave Theory and Techniques. 52: 1866-1875. DOI: 10.1109/Tmtt.2004.832014  0.662
2004 Meaney PM, Fang Q, Fanning MW, Pendergrass SA, Raynolds T, Fox CJ, Paulsen KD. Microwave breast imaging with an under-determined reconstruction parameter mesh 2004 2nd Ieee International Symposium On Biomedical Imaging: Macro to Nano. 2: 1369-1372.  0.642
2003 Meaney PM, Fanning MW, Paulsen KD, Lit D, Pendergrass SA, Fang Q, Moodie KL. Microwave thermal imaging: initial in vivo experience with a single heating zone. International Journal of Hyperthermia : the Official Journal of European Society For Hyperthermic Oncology, North American Hyperthermia Group. 19: 617-41. PMID 14756452 DOI: 10.1080/0265673031000140822  0.645
2003 Meaney PM, Paulsen KD, Fanning MW, Li D, Fang Q. Image accuracy improvements in microwave tomographic thermometry: phantom experience. International Journal of Hyperthermia : the Official Journal of European Society For Hyperthermic Oncology, North American Hyperthermia Group. 19: 534-50. PMID 12944168 DOI: 10.1080/0265673031000082386  0.73
2003 Meaney PM, Fanning MW, Li D, Fang Q, Pendergrass S, Paulsen KD. Microwave imaging for thermal therapy monitoring: temperature accuracy and image reconstruction time improvements Biomedical Optics. 4954: 172-182. DOI: 10.1117/12.476644  0.751
2002 Li D, Meaney PM, Fanning MW, Fang Q, Pendergrass SA, Raynolds T. Spectrum analysis of microwave breast examination data and reconstructed images Proceedings - International Symposium On Biomedical Imaging. 2002: 62-65. DOI: 10.1109/ISBI.2002.1029193  0.667
2001 Meaney PM, Fanning MW, Fang Q, Paulsen KD. Initial experience with a microwave imaging system for monitoring temperature change in an animal model Annual Reports of the Research Reactor Institute, Kyoto University. 3: 2844-2847.  0.61
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