Solving crystal structures, 1997: credits (Gregory A. Petsko; Professor of Biochemistry and Chemistry and Director, Rosenstiel Basic Medical Sciences Research Center, Brandeis University)

Wikipedia, September 25, 2019 (Gregory A. Petsko; born August 7, 1948; American biochemist; current Professor of Neuorlogy at Bringham and Women's Hospital and Harvard Medical School ; Cornell Medical College ; Professor Emeritus in Biochemistry and Chemistry at Brandeis University) https://en.wikipedia.org/wiki/Gregory_Petsko

Board of Trustess, September 25, 2019 (Gregory A. Petsko; Arthur J. Mahon Professor of Neurology and Neuroscience at Weill Cornell Medical College in New York City) https://www.brandeis.edu/trustees/bios/petsko.html