| #991 | Complementary therapies in medicine. -- Edinburgh : Churchill Livingstone, 1993-. -- ISSN 0965-2299 print. -- ISSN 1873-6963 online |
| #992 | Complementary therapies in nursing & midwifery. -- Edinburgh : Churchill Livingstone, 1995-2004. -- ISSN 1353-6117 print. -- ISSN 1873-698X online |
| #993 | Comprehensive psychiatry. -- Orlando : Grune & Stratton, 1960-. -- ISSN 0010-440X print. -- ISSN 1532-8384 online |
| #994 | Comprehensive reviews in food science and food safety. -- Chicago : Institute of Food Technologists, 2002-. -- ISSN 1541-4337 |
| #995 | Computer programs in biomedicine. -- Amsterdam : North-Holland, 1970-1985. -- ISSN 0010-468X print. -- ISSN 1878-3139 online |
| #996 | Computerized radiology. -- Elmsford : Pergamon, 1982-1987. -- ISSN 0730-4862 print. -- ISSN 1878-3112 online |
| #997 | Computerized tomography. -- Oxford : Pergamon, 1977-1981. -- ISSN 0363-8235 print. -- ISSN 1878-3104 online |
| #998 | Concours médical. -- Paris : Concours médical, 1879-. -- ISSN 0010-5309 print. -- ISSN 2101-0161 online |
| #999 | Conference papers index. -- Bethesda : Cambridge Scientific Abstracts, 1978-. -- ISSN 0162-704X print. -- ISSN 1555-6468 online |
| #1000 | Confinia psychiatrica. -- Basel : Karger, 1958-1980. -- ISSN 0010-5686 |