title: Threshold excitation and optimal stimulation for frog skeletal muscle fibers studied with intracellular electrodes.
mesh_terms: D000200:Action Potentials; D000818:Animals; D001001:Anura; D004558:Electric Stimulation; D066298:In Vitro Techniques; D008839:Microelectrodes; D009132:Muscles / Q000502:physiology*; D011894:Rana pipiens