[Echocardiography: its 15-year use in the USSR].
Mukharliamov
N M
NM
D002318:Cardiovascular Diseases / Q000175:diagnosis*; D004452:Echocardiography / Q000379:methods / Q000706:statistics & numerical data*; D006801:Humans; D014586:USSR
Ekhokardiografiia: k 15-letiiu primeneniia v SSSR.