title: Post-tetanic increase in frequency of miniature end-plate potentials in calcium-free solutions.
mesh_terms: D000818:Animals; D001001:Anura; D002118:Calcium / Q000494:pharmacology*; D002614:Chelating Agents / Q000494:pharmacology; D066298:In Vitro Techniques; D008274:Magnesium / Q000494:pharmacology; D009132:Muscles / Q000187:drug effects; D009469:Neuromuscular Junction / Q000187:drug effects* / Q000502:physiology; D009435:Synaptic Transmission
chemical_list: D002614:Chelating Agents; D008274:Magnesium; D002118:Calcium