title: When did medicines become essential?
authors.forename: Jeremy A
authors.initials: JA
authors.lastname: Greene
mesh_terms: D018954:Drugs, Essential / Q000600:supply & distribution*; D006292:Health Priorities / Q000458:organization & administration; D054625:Healthcare Disparities / Q000458:organization & administration; D006801:Humans; D014944:World Health Organization / Q000458:organization & administration*
chemical_list: D018954:Drugs, Essential