- 1971Staff Fellow
- 1974[position unknown]
- 1973[position unknown]
- 1974[position unknown]
- 1970Director Of Intramural Research
- 1970Senior Staff Fellow
- 1969Director
- 1970Director
- 1974[position unknown]
- 1970Staff Fellow
- 1971Public Health Service International Fellow
- 1972Staff Associate
- 1973[position unknown]