[SEARCH FOR HEART CHANGES WITH THE AID OF X-RAY SURVEY FILMS].
D006332:Cardiomegaly; D002318:Cardiovascular Diseases; D005858:Germany; D005859:Germany, East; D006321:Heart; D006330:Heart Defects, Congenital; D006339:Heart Rate; D006801:Humans; D008400:Mass Chest X-Ray; D013223:Statistics as Topic; D014965:X-Rays
CARDIOVASCULAR DISEASES; GERMANY, EAST; HEART DEFECTS, CONGENITAL; HEART ENLARGEMENT; HEART RATE; MASS CHEST X-RAY; STATISTICS
SUCHAKTION NACH HERZVERAENDERUNGEN MIT HILFE DER ROETGENKATASTERAUFNAHMEN.