Encyclopedias, Almanacs, Transcripts, and Maps
- Psychoplasm
- Psychorrhagic Diathesis
- Psychosurgery, Ethical Aspects of
- Psychosurgery, Medical and Historical Aspects of
- Psychosynthesis Institute
- Psychotronics
- Psychrophilic Bacteria
- Psylli
- Ptolemaic Astronomy, Islamic Planetary Theory, and Copernicus's Debt to the Maragha School
- Ptolemy (Claudius Ptolemaeus)
- Puberty
- Puberty
- Public Health Efforts since 1950
- Public Health in the Middle Ages
- Public Health Law
- Public Health Law: I. The Law of Public Health
- Public Health Law: II. Legal Moralism and Public Health
- Public Health, Current Issues
- Public Health: I. Determinants
- Public Health: II. History