Databases A-Z
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
This National Cancer Institute unit's goal is to increase the amount of high-quality cancer research and information about the use of complementary and alternative modalities.
OMIM (Online Mendelian Inheritance in Man) (Johns Hopkins University)
Part of the NBI suite of medical information online, OMIM provides key genetic and genome information in a searchable and easy to use database.
Oncolink (University of Pennsylvania)
OncoLink was founded in 1994 by University of Pennsylvania cancer specialists with a mission to help cancer patients, families, health care professionals and the general public get accurate cancer-related information at no charge. OncoLink contains comprehensive information about specific types of cancer, updates on cancer treatments and news about research advances.
OncoLink Cancer News (University of Pennsylvania)
Provided by the Abramson Cancer Center at the University of Pennsylvania.
Since 1975, ONS has provided a professional community for oncology nurses, developed evidence-based education programs and treatment information, and advocated for patient care, all in an effort to improve quality of life and outcomes for patients with cancer and their families.  Please note: ONS abstracts are available via CINAHL and the Oncology Nursing Forum (ONF) publication.
Good resource for finding open access graduate theses and dissertations published around the world. Information about this content comes from many colleges, universities, and research institutions.
Open-i Open Access Biomedical Image Search Engine  (National Library of Medicine)
Provides access to the images (charts, graphs, clinical images, etc.) and related abstracts from the open source literature, and biomedical image collections. Includes images from PubMed Central® articles; chest x-rays; images from NLM History of Medicine collection; and orthopedic illustrations.

Orphanet  (Orphanet)
Assists in the diagnosis and overview of rare diseases. Provides users with expert summaries, links to reputable resources, and drug information for certain diseases.
OSF Preprints (Open Science Framework)
An open access preprint repository network providing papers in the fields of Architecture, Business, Engineering, Life Science, Physical Science & Mathematics, Arts & Humanities, Education, Law, Medicine & Health Sciences, and Social & Behavioral Sciences.
Ovid Databases (Wolters Kluwer)
Access to several resources and databases including Books@Ovid, Journals@Ovid, Allied and Complementary Medicine (AMED), Health and Psychosocial Instruments (HAPI), and PsycINFO.