title: The effect of calcium on sodium influx and loss in Gammarus (amphipoda).
mesh_terms: D000818:Animals; D002118:Calcium / Q000494:pharmacology*; D002122:Calcium Chloride / Q000494:pharmacology; D003445:Crustacea / Q000502:physiology*; D012964:Sodium / Q000378:metabolism*; D012975:Sodium Isotopes
chemical_list: D012975:Sodium Isotopes; D012964:Sodium; D002122:Calcium Chloride; D002118:Calcium