title: Hyponatraemia in preterm infants--arginine vasopressin secretion.
mesh_terms: D000450:Aldosterone / Q000652:urine; D001127:Arginine Vasopressin / Q000652:urine*; D006801:Humans; D007010:Hyponatremia / Q000652:urine; D007231:Infant, Newborn; D007235:Infant, Premature, Diseases / Q000652:urine*
chemical_list: D001127:Arginine Vasopressin; D000450:Aldosterone