Domingo Liotta University College of Medicine, Houston, Texas. 1962-64: Advanced Research Fellow of the American Heart Association. 1963-69: Co-Director of the Baylor-Rice Artificial Heart Program shared with Michael E. DeBakey and C. William Hall. Houston, Texas. 1964-71: Assistant Professor of Surgery, Baylor University College of Medicine, Chairman of the Department: Dr. Michael E. DeBakey, Houston, Texas. 1970-71: Director of Surgical Research, Texas Heart Institute, Chief of Cardiovascular Service Denton A. Cooley, Houston, Texas. 1971-74: Surgeon-in-Chief, Carlos Durand Public Hospital, Buenos Aires, Argentina. 1971-90: Surgeon-in-Chief, Service of Cardiovascular Surgery, Italian Hospital of Buenos Aires, Argentina. 1973-74: Secretary of State for Public Health, Argentina.
Comparison of MD and DO in the United States schools opening at a rate faster than MD schools, and an increase in applicants for medical schools as a whole. A 2012 survey of students applying to both U.S. MD and DO schools found that 9% of applicants were admitted only to an MD school, 46% were admitted only to a DO school, 26% were admitted to both, and 19% were not admitted to any medical schools. Geographic location was the top reason given by both DO and MD students for choosing the school in which they enrolled. Of first-year medical students matriculating in 2016, 25.9% (7,369 students) entered DO