- "Occult and drugless therapeutics"1
- "Ogden Cleared on 3 Charges, Free on 4th"1
- "Ohne Berüfstörung, und brieflich."1
- "On se dit qu'on n'est jamais assez humain"2
- "On service"1
- "On this side Jordan": inaugural lecture in the Faculty of Comparative Medicine, McGill University, October, 18941
- "Only nervousness"1
- "Opium antidotes" and their vendors1
- "Oral electricity and the new departure"1
- "Organization and method employed by the Medical Department to carry on its mission of purchase," to Industrial Conference, Washington, D.C., undated1
- "Outline of investigations into the nature, causes and prevention of endemic and epidemic diseases, and more especially malarial fevers" - Joseph Jones1
- "Papi, ponte el sombrero": protégete!1
- "Parenthood is like pro ball--there's ten times more going on than you expected"1
- "Partagerais-tu mon kot, si j'étais séropositif?": c'est l'exclusion qu'il faut exclure, pas les sé́́́ropositifs1
- "Per Capita Medicinal Requirements of Narcotics: Data Secured in a Narcotic Survey of Allegany County, Maryland"1
- "Periodical physical examinations of army personnel," at Interstate Post-Graduate Assembly, Milwaukee, October 31, 19241
- "Physic"1
- "Physical defects discovered in the selective service draft men during the World War," at Gettysburg College, June 14, 19221
- "Physical fitness of army officers," at Army War College, April 14, 19221
- "Physical fitness of army officers," to Fort Leavenworth student body, Kansas, October 17, 19241