Isolation of a cardiac-active principle from mammalian tissues.
D000818:Animals; D006321:Heart / Q000187:drug effects*; D054709:Lecithins; D008322:Mammals; D010713:Phosphatidylcholines / Q000031:analogs & derivatives
D054709:Lecithins; D010713:Phosphatidylcholines
HEART/effect of drugs on; LECITHIN/related compounds