Sodium- and calcium-dependence of threshold potential in frog skin excitation.
D000818:Animals; D001001:Anura; D002118:Calcium; D055598:Chemical Phenomena; D002621:Chemistry; D004594:Electrophysiology; D008094:Lithium; D012879:Skin Physiological Phenomena; D012964:Sodium; D013395:Sucrose
D013395:Sucrose; D008094:Lithium; D012964:Sodium; D002118:Calcium