Before revision: Leonard Hayflick ( born 20 May 1928 ) is a Professor of Anatomy at the UCSF School of Medicine, and was Professor of Medical Microbiology at Stanford University School of Medicine.
After revision: Leonard Hayflick ( born 20 May 1928 - 2 August 2024) was a Professor of Anatomy at the UCSF School of Medicine, and was Professor of Medical Microbiology at Stanford University School of Medicine.