The radiographic demonstration of the mode of action of the heart of the frog.
FOXON
G E H
GE
WALLS
E W
EW
D000818:Animals; D001001:Anura; D006321:Heart / Q000000981:diagnostic imaging* / Q000502:physiology*; D006801:Humans; D011859:Radiography
HEART/physiology; HEART/roentgenography