title: Effects of removal of calcium and its replacement by strontium and barium ions on synaptic transmission in frog spinal neurones [proceedings].
mesh_terms: D000818:Animals; D001001:Anura; D001464:Barium / Q000494:pharmacology; D002118:Calcium / Q000494:pharmacology*; D066298:In Vitro Techniques; D008564:Membrane Potentials / Q000187:drug effects; D009046:Motor Neurons / Q000502:physiology; D013116:Spinal Cord / Q000166:cytology; D013324:Strontium / Q000494:pharmacology; D013569:Synapses / Q000502:physiology*; D009435:Synaptic Transmission / Q000187:drug effects*
chemical_list: D001464:Barium; D002118:Calcium; D013324:Strontium