[Immediate effect of x-rays on frog heart].
D000818:Animals; D001001:Anura; D006321:Heart / Q000528:radiation effects*; D011827:Radiation; D011898:Ranidae; D014965:X-Rays
HEART/effect of radiations on; ROENTGEN RAYS/effects
Sofortwirkung von Röntgenstrahlen am Froschherzen.