TY - RPRT TI - Naloxone reversible decrease in pain sensitivity in young and adult spontaneously hypertensive rats. AU - J M Saavedra PY - 1981 DO - 10.1016/0006-8993(81)91189-6 UR - https://pubmed.ncbi.nlm.nih.gov/6260306/ ID - 6260306 ER -