[Comments on the article by G. I. Vol'fson "Roman Sergeevich Chetyrkin"].
D049671:History, 18th Century; D049672:History, 19th Century; D008887:Military Medicine / Q000266:history*; D008889:Military Personnel; D009326:Naval Medicine / Q000266:history*
BIOGRAPHIES; MEDICINE, MILITARY AND NAVAL/history
Zamechaniia po povodu stat'i G. I. Vol'fsona "Roman Sergeevich Chetyrkin".