title: Spinal anesthesia in premature infants: dosage and effects of sympathectomy.
mesh_terms: D000775:Anesthesia, Spinal; D001340:Autonomic Nerve Block; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D013748:Tetracaine / Q000008:administration & dosage
chemical_list: D013748:Tetracaine