 An opportunity arose to study epidemiology and health services administration at Harvard, where he received his MPH degree (magna cum laude) in 1955.Not wishing to return to Lebanon due to political unrest, he received sponsorship to stay in the USA with his wife and children.He became a non-clinical teacher and researcher at New York Medical College from 1957 to 1961, when he was recruited by the School of Public Health at the University of Michigan.