| #31 | Clinical immunology. -- Orlando : Academic Press, 1999-. -- ISSN 1521-6616 print. -- ISSN 1521-7035 online |
| #32 | Clinical immunology and immunopathology. -- New York : Academic Press, 1972-1998. -- ISSN 0090-1229 print. -- ISSN 1090-2341 online |
| #33 | Clinics in immunology and allergy. -- London : Saunders, 1981-1986. -- ISSN 0260-4639 |
| #34 | Current Medical Literature. Alergie. -- Brno : Medica Publishing and Consulting, 2000-2003. -- ISSN 1213-4872 |
| #35 | Current opinion in allergy and clinical immunology : České a slovenské vyd. -- Praha : Medical Tribune CZ, 2004-. -- ISSN 1214-472X print. -- ISSN 1803-8948 online |
| #36 | Current opinion in allergy and clinical immunology. -- Hagerstown : Lippincott Williams and Wilkins, 2001-. -- ISSN 1528-4050 print. -- ISSN 1473-6322 online |
| #37 | Current opinion in immunology. -- London : Current Science, 1988-. -- ISSN 0952-7915 print. -- ISSN 1879-0372 online |
| #38 | Current topics in microbiology and immunology. -- Berlin : Springer, 1967-. -- ISSN 0070-217X |
| #39 | Cytotherapy. -- London : Martin Dunitz, 1999-. -- ISSN 1465-3249 print. -- ISSN 1477-2566 online |
| #40 | Československá epidemiologie, mikrobiologie, imunologie. -- Praha : Československá lékařská společnost J.E. Purkyně. -- ISSN 0009-5222 |