title: [Pioneers].
authors: A N
authors: AN
authors: Kochetov
mesh_terms: D049672:History, 19th Century; D049673:History, 20th Century; D008887:Military Medicine; D009326:Naval Medicine; D011859:Radiography; D012425:Russia (Pre-1917); D014857:Warfare
vernacular_title: Pervoprokhodtsy.