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The Chicago Manual of Style Online is the venerable guide to style, usage, and grammar in an accessible online format. It is an indispensable reference for writers, editors, proofreaders, indexers, copywriters, designers, and publishers, informing the editorial canon with sound, definitive advice.
UpToDate is a clinical decision support resource with evidence-based clinical information – including drug topics and recommendations that clinicians use at the point of care. UpToDate covers 25 specialties, including internal medicine, psychiatry, infectious disease, and cardiovascular medicine.