title: [In memoriam Petr Nikolaevich Zhilin].
mesh_terms: D049673:History, 20th Century; D006920:Hygiene / Q000266:history; D011634:Public Health / Q000266:history; D012425:Russia (Pre-1917); D014586:USSR
vernacular_title: Pamiati Petra Nikolaevicha Zhilina