| #41 | Clinical & experimental metastasis. -- Dordrecht : Kluwer Academic Publishers, 1983-. -- ISSN 0262-0898 print. -- ISSN 1573-7276 online |
| #42 | Clinical lung cancer. -- Dallas : Cancer Information Group, 1999-. -- ISSN 1525-7304 print. -- ISSN 1938-0690 online |
| #43 | Colorectal news : časopis pro odborníky ve zdravotnictví. -- Praha : We Make Media, 2012-. -- ISSN 1805-5400 |
| #44 | Critical reviews in oncology/hematology. -- Limerick : Elsevier Science Ireland, 1983-. -- ISSN 1040-8428 |
| #45 | Current Medical Literature. Kolorektální karcinom. -- Brno : Medica Publishing and Consulting, 2002. -- ISSN 1213-8924 |
| #46 | Current Medical Literature. Rakovina prsu. -- Brno : Medica Publishing and Consulting, 2000-. -- ISSN 1213-4899 |
| #47 | Current Opinion in Oncology : české vydání. -- Praha : Medical Tribune CZ, 2007-. -- ISSN 1801-2671 |
| #48 | Current opinion in oncology. -- Hagerstown : Lippincott Williams Wilkins, 1989-. -- ISSN 1040-8746 print. -- ISSN 1531-703X online |
| #49 | Československá onkologia. -- Bratislava : Veda SAV, 1954-1956. -- ISSN 1338-3515 |
| #50 | Deutsche Zeitschrift für Onkologie. -- Heidelberg : Haug, 2001-. -- ISSN 1617-5891 print. -- ISSN 1439-0930 online |