title: [How old are our drugs?].
authors.forename: A
authors.initials: A
authors.lastname: Kocna
mesh_terms: D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D004364:Pharmaceutical Preparations / Q000266:history*
chemical_list: D004364:Pharmaceutical Preparations
vernacular_title: Jak staré jsou nase léky?