- Ashford, Mahlow - Lieutenant, M.C., U.S.A. (1881- )1
- Ashley, Maurice Cavileer - Captain, N.G. N.Y. (1863- ) + portrait1
- Asserson, Frederick Asser - Passed Assistant Surgeon, U.S.N. (1879- )1
- Association des Societies Nationales...de Gastro-Enterologie, 19541
- Association of Acting Assistant Surgeons, 1892-19001
- Association of American Medical Colleges1
- Association of American Medical Colleges Annual Meeting (New Orleans, LA), 1992 Nov 91
- Association of Army and Navy Surgeons -- third series of questions, 18631
- Association of Documentary - Television Film Cameramen1
- Association of Former Interns and Residents of Freedmen's Hospital, 1951-19691
- Association of Scientific Workers (London)1
- Asthma1
- Asyouwere (Volume I, Number 1, February 15, 1919)1
- Asyouwere (Volume I, Number 10, April 19, 1919)1
- Asyouwere (Volume I, Number 11, April 26, 1919)1
- Asyouwere (Volume I, Number 13, May 10, 1919)1
- Asyouwere (Volume I, Number 14, May 17, 1919)1
- Asyouwere (Volume I, Number 15, May 24, 1919)1
- Asyouwere (Volume I, Number 16, May 30, 1919)1
- Asyouwere (Volume I, Number 17, June 7, 1919)1