[Influence of Ca++ ions and of potential on the contraction of sinoatrial fibers in frogs].
D000818:Animals; D001001:Anura; D002118:Calcium; D008564:Membrane Potentials; D012849:Sinoatrial Node / Q000502:physiology*
D002118:Calcium
Influence des ions Ca et du potentiel sur la contraction des fibres sino-atriales de grenouille.