00607nam 2200169z- 450 9910712356303321(CKB)5470000002492569(EXLCZ)99547000000249256920230509c1988uuuu -u- -engOpioid peptides : an updateU.S. Department of Health and Human Services, Public Health Service, Alcohol, Drug Abuse, and Mental Health Administration, National Institute on Drug AbuseRockville, MarylandOpioid peptides BOOK9910712356303321Opioid peptides : an update3280599UNINA