Resumption of activity in spontaneously and in nonspontaneously beating pieces of frog's hearts after freezing in liquid nitrogen.
D000818:Animals; D001001:Anura; D004558:Electric Stimulation; D005615:Freezing; D006018:Glycols; D006321:Heart / Q000502:physiology*; D006329:Heart Conduction System / Q000502:physiology; D066298:In Vitro Techniques; D009584:Nitrogen; D014021:Tissue Preservation; D016276:Ventricular Function
D006018:Glycols; D009584:Nitrogen