Multiple reference books, including The Oxford Companion to the Body, The Oxford Concise Medical Dictionary, and The Oxford Companion to the History of Modern Science. Do a general search or limit to specific subject areas.
The Cambridge World History of Human Disease. Osler Ref folio QZ 11.1 C178 1993
Companion Encyclopedia of the History of Medicine. Osler Ref WZ 13 C737 1993. This work has many good essays with bibliographies.
A Dictionary of the History of Medicine. Osler Ref folio WZ 13 S443d 1999
Encyclopedia of Plague and Pestilence: from Ancient Times to the Present. Osler Ref folio WA 13 E565 2001