- Les préservatifs aujourd'hui, tout le monde dit oui!1
- Let's play safe1
- Letter from C. Phillip Miller, Rockefeller Institute for Medical Research to Peyton Rous1
- Letter from Hubert H. Humphrey to Mary Lasker1
- Letter from Libby Anfinsen to Ilana Eisen1
- Letter from Maclyn McCarty to Wendell M. Stanley1
- Letter from Wendell M. Stanley to Maclyn McCarty1
- Light a candle for someone you know: join the National Coalition for Cancer Survivorship for the second annual Rays of Hope rally/candlelight vigil1
- Light for rights: Journée mondiale de lutte contre le sida = Wereld AIDS dag : 01.12.20101
- Lines by Oliver Wendell Holmes on the presentation of his portrait to the Philadelphia College of Physicians: Saturday, April 30th, 18921
- Listen, learn, live1
- Love for young and old1
- Love is the only force1
- Maclyn McCarty's remarks at the dedication of the Avery Memorial Gateway1
- Making the dream a reality: NIH 13th Annual Dr. Martin Luther King, Jr. commemorative program1
- Marche de solidarité =: Solidariteitsoptocht1
- Medical Department of Howard University: seventh annual commencement : Friday, March 2, at 7 1-2 P.M. at the Congregational Church, Corner of Tenth and G Streets, Northwest, Washington, D.C1
- Medical Department of Howard University: third annual commencement, Wednesday, February 26, at 7:30 P.M. at the First Congregational Church, corner of Tenth and G Streets, N.W., Washington, D.C1
- Medical film festival: December 1-5, 1986 : National Library of Medicine, Lister Hill Auditorium1
- Medicine & pharmacy: 100 years of poster art : from the collection of William H. Helfand1