title: Letter: Early neonatal hypocalcaemia.
mesh_terms: D002116:Calcitonin / Q000097:blood; D002118:Calcium / Q000097:blood; D004347:Drug Interactions; D013006:Growth Hormone / Q000378:metabolism; D006801:Humans; D006996:Hypocalcemia / Q000209:etiology*; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000209:etiology*; D010281:Parathyroid Hormone / Q000097:blood
chemical_list: D010281:Parathyroid Hormone; D013006:Growth Hormone; D002116:Calcitonin; D002118:Calcium