title: Per Af Bjerkén.
authors.affiliation: New York Medical College, USA.
authors.forename: Jay M
authors.initials: JM
authors.lastname: Galst
authors.forename: Peter
authors.initials: P
authors.lastname: van Alfen
mesh_terms: D049671:History, 18th Century; D049672:History, 19th Century; D006801:Humans; D009717:Numismatics / Q000266:history*; D009885:Ophthalmology / Q000266:history*