[The heart beat--the rhythm of health. The origin of the World Health Organization].
Fejfar
Z
Z
D002318:Cardiovascular Diseases; D049673:History, 20th Century; D006801:Humans; D014944:World Health Organization / Q000266:history
Tlukot srdce--rytmus zdraví. Vznik Svĕtové zdravotnické organizace.