title: Effect of calcium ions on rigor contractions in skinned frog muscle fibers.
mesh_terms: D000255:Adenosine Triphosphate / Q000502:physiology; D000818:Animals; D001001:Anura; D002118:Calcium / Q000494:pharmacology*; D009119:Muscle Contraction / Q000187:drug effects*; D009132:Muscles / Q000502:physiology
chemical_list: D000255:Adenosine Triphosphate; D002118:Calcium