title: [An example of courage and fortitude (A. A. Petrova)].
mesh_terms: D006676:History of Nursing; D049672:History, 19th Century; D049673:History, 20th Century; D012425:Russia (Pre-1917); D014586:USSR
vernacular_title: Primer muzhestva i stoĭkosti (o A. A. Petrovoĭ).