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Authors
- Patterson, Mary Marvin Breckinridge, 1905-20021
- Pearce, R. G. (Roy Gentry), 1884-1960 author1
- Pearl, Raymond, 1879-1940 author2
- Pennsylvania.1
- Pennsylvania. State Board of Health and Vital Statistics.1
- Pennsylvania. State Board of Medical Education and Licensure author.1
- Phalen, James M. (James Matthew), 1872-1954 author1
- Philadelphia County Medical Society.1
- Philadelphia University of Medicine and Surgery, author.1
- Phillips, Anna C. (Anna Crawford), 1889- author1
- Phinney, H. F.3
- Physician, 1830-1906 author1
- Pierce, George E. (George Edmund), 1794-18711
- Pierce, R. V. (Ray Vaughn), 1840-19146
- Piffard, Henry G. (Henry Granger), 1842-1910 author1
- Pitcher, Zina, 1797-18721
- Pitfield, Robert L. (Robert Lucas), 1870- author1
- Platt, S. H. (Smith H.)1
- Plesset, Isabel Rosanoff, 1912-1985, author1
- Plummer, R. H. (Richard H.), 1840-1899 author1