| #2351 | Proceedings of the National Academy of Sciences of the United States of America. -- Washington : National Academy of Sciences, 1914-. -- ISSN 0027-8424 print. -- ISSN 1091-6490 online |
| #2352 | Proceedings of the Nutrition Society. -- Oxon : CABI Publishing, 1944-. -- ISSN 0029-6651 |
| #2353 | Proceedings of the Royal College of Physicians of Edinburgh. -- Edinburgh : Royal College of Physicians of Edinburgh, 1986-2001. -- ISSN 0953-0932 |
| #2354 | Proceedings of the Royal Society of Medicine. -- London : Royal Society of Medicine Press, 1907-1977. -- ISSN 0035-9157 |
| #2355 | Proceedings of the Society for Experimental Biology and Medicine. -- Malden : Blackwell Science, 1904-2000. -- ISSN 0037-9727 |
| #2356 | Profi medicína : odborné fórum pracovníků ve zdravotnictví. -- Praha : A 11 s.r.o., 2019-. -- ISSN 2571-252 |
| #2357 | Program/proceedings. -- Baltimore : Waverly Press, 1990-2002. -- ISSN 1081-0641 |
| #2358 | Progresdent. -- Praha : ART, 1995-. -- ISSN 1211-3859 |
| #2359 | Progress in biochemical pharmacology. -- Basel : Karger, 1965-. -- ISSN 0079-6085 |
| #2360 | Progress in biophysics and molecular biology. -- Oxford : Pergamon Press, 1963-. -- ISSN 0079-6107 print. -- ISSN 1873-1732 online |