TY - RPRT TI - Methionine-enkephalin and morphine: amount ejected microiontophoretically. AU - D A Hosford AU - H J Haigler AU - R S Turner PY - 1981 DO - 10.1016/0165-0270(81)90047-9 UR - https://pubmed.ncbi.nlm.nih.gov/7278364/ ID - 7278364 ER -