title: [Letter: Microbiological degree of purity in dermatologic external agents].
mesh_terms: D000287:Administration, Topical; D003879:Dermatologic Agents / Q000592:standards*; D004203:Disinfection; D004340:Drug Contamination; D005060:Europe; D005860:Germany, West; D007880:Legislation, Drug; D013242:Sterilization; D013678:Technology, Pharmaceutical
chemical_list: D003879:Dermatologic Agents
vernacular_title: Mikrobiologischer Reinheitsgrad von dermatologischen Externa