title: Effects of calcium and magnesium on facilitation of a unitary synaptic potential in neuron R15 of Aplysia.
mesh_terms: D000818:Animals; D002118:Calcium / Q000494:pharmacology*; D004558:Electric Stimulation; D008274:Magnesium / Q000494:pharmacology*; D008564:Membrane Potentials / Q000187:drug effects*; D008839:Microelectrodes; D008974:Mollusca / Q000502:physiology*; D009474:Neurons / Q000187:drug effects / Q000502:physiology*; D013569:Synapses / Q000187:drug effects / Q000502:physiology*; D013997:Time Factors
chemical_list: D008274:Magnesium; D002118:Calcium