[P.I. Stradyn'--physician, scientist, medical historian (on his 75th birthday)].
D006666:History of Medicine; D049672:History, 19th Century; D049673:History, 20th Century; D007844:Latvia
P.I. Stradyn'--vrach, uchenyĭ, istorik meditsiny (k 75-letiiu so dnia rozhdeniia.