[100 years of the Perm Sanitary Organization].
D004813:Epidemiology / Q000266:history; D049672:History, 19th Century; D049673:History, 20th Century; D006920:Hygiene; D012426:Russia; D012499:Sanitation / Q000266:history*
Permskoĭ sanitarnoĭ organizatsii 100 let.