title: [Past and present of medical exposure measurement].
authors.affiliation: Kyoto College of Medical Science.
authors.forename: Motohiro
authors.initials: M
authors.lastname: Nishitani
mesh_terms: D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007564:Japan; D011859:Radiography / Q000266:history; D011874:Radiometry / Q000266:history* / Q000295:instrumentation / Q000379:methods