[The history of Soviet-Bulgarian medical relations (on the occasion of the 25th anniversary of the People's Republic of Bulgaria)].
D002031:Bulgaria; D049672:History, 19th Century; D049673:History, 20th Century; D007391:International Cooperation / Q000266:history*; D012425:Russia (Pre-1917)
Ob istorii sovetsko-bolgarskikh meditsinskikh sviazeĭ (k 25-letiiu Narodnoĭ Respubliki Bolgarii)