[ON THE HISTORY OF RUSSIAN-BULGARIAN COOPERATION IN THE FIELD OF MEDICINE AND PUBLIC HEALTH].
D002031:Bulgaria; D005006:Ethnicity; D006664:History; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007398:Interpersonal Relations; D007802:Language; D008511:Medicine; D011634:Public Health; D012426:Russia; D014586:USSR
BULGARIA; HISTORY; HISTORY OF MEDICINE, 19TH CENT.; HISTORY OF MEDICINE, 20TH CENT.; MEDICINE; PUBLIC HEALTH; USSR
K ISTORII RUSSKO-BOLGARSKOGO SOTRUDNICHESTVA V OBLASTI MEDITSINY I ZDRAVOOKHRANENIIA.