title: [Doppler echocardiography: the physical basis of the method of recording. I].
mesh_terms: D001775:Blood Circulation; D001783:Blood Flow Velocity; D004452:Echocardiography / Q000379:methods*; D006801:Humans; D012212:Rheology / Q000379:methods
vernacular_title: Echokardiografia dopplerowska--podstawy fizyczne metody rejestracji. Cześć I.