| #2341 | Prevention. -- Praha : StomaTeam s.r.o.,, 2020- |
| #2342 | Preventive medicine. -- New York : Academic Press, 1972-. -- ISSN 0091-7435 |
| #2343 | Prikladnaja biochimija i mikrobiologija. -- Moskva : Nauka, 1965-. -- ISSN 0555-1099 |
| #2344 | Pro medico. -- München-Gräfelfing : Banaschewski, 1930-1984. -- ISSN 0032-907X |
| #2345 | Problems in anesthesia. -- Hagerstown : Lippincott Williams & Wilkins, 1987-2001. -- ISSN 0889-4698 |
| #2346 | Problems of Infectious and Parasitic Diseases. -- Sofija : Medicina, 1973-. -- ISSN 0204-9155 |
| #2347 | Problemy tuberkuljoza. -- Moskva : Medicina, 1935-2003. -- ISSN 0032-9533 |
| #2348 | Problemy èndokrinologii. -- Moskva : Medicina, 1967-. -- ISSN 0375-9660 |
| #2349 | Proceedings. -- Baltimore : Waverly Press, 1974-. -- ISSN 0197-016X |
| #2350 | Proceedings. -- Baltimore : Waverly Press, 1982-1989. -- ISSN 0736-7589 |