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Titles
- Ophthalmic aspects of chemical warfare1
- Ophthalmology and otolaryngology1
- Optometry Corps: hearings before a subcommittee of the Committee on Military Affairs, United States Senate, Seventy-ninth Congress, second session, on H.R. 3755 : an Act to Establish an Optometry Corps in the Medical Department of the United States Army : January 24 and 25, 19461
- Optometry Corps: hearings before the Committee on Military Affairs, House of Representatives, Seventy-ninth Congress, first session, on H.R. 1699, a bill to establish an Optometry Corps in the Medical Department of the United States Army, June 28, 29, July 3, 6, and 9, 19451
- Oregon laws relating to public health1
- Oregon manual for the use of the school health record card1
- Organization and administration in World War II1
- Organization chart: Army Service Forces, Army Industrial Hygiene Laboratory1
- Organization of chemical warfare courses1
- Original articles1
- Orthopedic surgery in the European theater of operations1
- Orthopedic surgery in the Mediterranean Theater of Operations1
- Orthopedic surgery in the zone of interior1
- Osteopathic law1
- Outcome of mental hospital treatment in New Jersey: a statistical review of state mental activities1
- Outline of Medical Department duties, United States Navy: a guide for newly appointed medical officers1
- Outline of course of instruction in high altitude physiology: January-March, 19411
- Outline of neuropsychiatry in aviation medicine1
- Outline of venereal disease control procedures for non-commissioned venereal disease control officers1
- Outlines for psychiatric examinations1