Galen (AD 129–200) of Pergamun: anatomist and experimental physiologist.
Internet Encyclopedia of Philosophy* Debru A. Galen on Pharmacology: Philosophy, History, and Medicine : Proceedings of the Vth International Galen Colloquium, Lille, 16–18 March 1995 BRILL 1997 ISBN 90-04-10403-8, ISBN 978-90-04-10403-7* Dunn PM.