Havard University
Surgeons Perform Second Pig Kidney Transplant at Massachusetts General Hospital. https://hms.harvard.edu/news/surgeons-perform-second-pig-kidney-transplant-massachusetts-general-hospital?fbclid=IwZXh0bgNhZW0CMTEAAR3uqFaMwPeKSXbmnOlKavDWJr7-1rLhiH_kocTkPosoxxobLK3sEHP8Wpk_aem_WjjRDRbiXdf7yczeU4nC_w