JOHN XXI--OPHTHALMOLOGIST, PROFESSOR OF PHYSIC, POPE.
D049691:History, Medieval; D008511:Medicine; D009885:Ophthalmology; D010714:Phosphatidylethanolamines; D010820:Physicians; D010825:Physics
D010714:Phosphatidylethanolamines; C057561:1-palmitoyl-2-oleoylphosphatidylethanolamine
BIOGRAPHIES; HISTORY; HISTORY OF MEDICINE, MEDIEVAL; OPHTHALMOLOGY