Division of Gastroenterology, Department of Hepatology and Nutrition, Hospital for Sick Children, 555 University Avenue, Toronto, Ontario, Canada, M5G 1X8.
Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI)