Crowdsourcing Skin Demarcations of Chronic Graft-Versus-Host Disease in Patient Photographs: Training Versus Performance Study - Andrew J McNeil; Kelsey Parks; Xiaoqi Liu; Bohan Jiang; Joseph Coco; Kira McCool; Daniel Fabbri; Erik P Duhaime; Benoit M Dawant; Eric R Tkaczyk (JMIR Dermatology, 2023)