Selective needle for electrocardiograph to isolate the R wave from slow waves.
D000368:Aged; D004562:Electrocardiography / Q000295:instrumentation*; D006321:Heart / Q000502:physiology*; D006801:Humans
ELECTROCARDIOGRAPHY/apparatus and instruments; HEART/physiology
Aiguille selective pour electrocardiographe permettant d'isoler l'onde R des ondes lentes.