These databases and clinical decision support tools are excellent for finding articles and background information with a medical / health sciences focus:
A collection of 50+ clinical and basic science textbooks, including classics such as Harrison's Principals of Internal Medicine. Tabs across the top provide easy access portals to information on drugs, diagnostic tests, patient handouts, video & audio, guidelines, and quick answers. Also provides information on Self-Assessments, USMLE preparation tips, sample questions, and Diagnosaurus for differential diagnosis.
The American Psychological Association produces PsycINFO for coverage of the international literature of psychology and related disciplines. PsycINFO contains citations and summaries of journal articles, books and book chapters, dissertations, and technical reports.
These journals have a cannabis specific focus: