| Journal Title | Publisher | Access Type | Indexed in MEDLINE |
| OBESITY RESEARCH | NORTH AMERICAN ASSOCIATION FOR THE STUDY OF OBESITY | Password | Yes |
| OBESITY REVIEWS | BLACKWELL SCIENCE | Password | No |
| OBSTETRICAL AND GYNECOLOGICAL SURVEY | LWW | Password | Yes |
| OBSTETRICS AND GYNECOLOGY | ELSEVIER SCIENCE | Password | Yes |
| OCCUPATIONAL AND ENVIRONMENTAL MEDICINE | BMJ PUBLISHING GROUP | Password | Yes |
| OCCUPATIONAL MEDICINE | ELSEVIER | Password | Yes |
| ONCOLOGIST | ALPHAMED PRESS | Password | Yes |
| ONCOLOGY | S KARGER AG, BASEL | Password | Yes |
| ONCOLOGY ISSUES | ASSOCIATION OF COMMUNITY CANCER CENTERS | Password | No |
| ONCOLOGY RESEARCH | ELSEVIER | Password | Yes |
| ONKOLOGE | SPRINGER BERLIN HEIDELBERG | Password | No |
| ONKOLOGIE | S KARGER AG, BASEL | Password | Yes |
| ONLINE JOURNAL OF ISSUES IN NURSING | AMERICAN NURSES ASSOCIATION | Free | Yes |
| OPHTHALMIC AND PHYSIOLOGICAL OPTICS | ELSEVIER | Password | Yes |
| OPHTHALMIC RESEARCH | S KARGER AG, BASEL | Password | Yes |
| OPHTHALMIC SURGERY AND LASERS | THOROFARE | Free | Yes |
| OPHTHALMOLOGE | SPRINGER BERLIN HEIDELBERG | Password | Yes |
| OPHTHALMOLOGICA | S KARGER AG, BASEL | Password | Yes |
| OPHTHALMOLOGY | AMERICAN ACADEMY OF OPHTHALMOLOGY | Password | Yes |
| ORAL DISEASES | MUNKSGAARD | Free | Yes |
| ORAL MICROBIOLOGY AND IMMUNOLOGY | BLACKWELL SCIENCE | Password | Yes |
| ORAL ONCOLOGY | ELSEVIER SCIENCE | Password | Yes |
| ORAL SURGERY, ORAL MEDICINE, ORAL PATHOLOGY, ORAL RADIOLOGY, AND ENDODONTICS | MOSBY | Password | Yes |
| ORGANIC LETTERS | AMERICAN CHEMICAL SOCIETY | Password | Yes |
| ORGANIZATIONAL BEHAVIOR AND HUMAN DECISION PROCESSES | ACADEMIC PRESS | Password | Yes |
| ORL | S KARGER AG, BASEL | Password | Yes |
| ORTHOPÄDE | SPRINGER BERLIN HEIDELBERG | Password | Yes |
| ORTHOPEDIC NURSING | PITMAN | Free | Yes |
| ORTHOPEDICS | THOROFARE | Free | Yes |
| OSTEOARTHRITIS AND CARTILAGE | W.B. SAUNDERS | Password | Yes |
| OSTEOPOROSIS INTERNATIONAL | SPRINGER-VERLAG LONDON | Password | Yes |
| OTO-RHINO-LARYNGOLOGIA NOVA | S KARGER AG, BASEL | Password | Yes |
| OTOLARYNGOLOGY - HEAD AND NECK SURGERY | MOSBY | Password | Yes |
| OUTCOMES MANAGEMENT FOR NURSING PRACTICE | LWW | Password | Yes |
![]](../img/kweb2000/bracket_right.gif){kind=small}