[The riddles of the first article by Ivan Petrovich Pavlov].
Khaiutin
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D000818:Animals; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D010827:Physiology / Q000266:history; D012425:Russia (Pre-1917); D013131:Spine / Q000098:blood supply / Q000294:innervation