RT Journal Article SR Electronic T1 Sameridine, a Partial μ-Opioid Receptor Agonist: Effects on Ventilation in Comparison to Morphine JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 70 OP 70 DO 10.1136/rapm-00115550-199823031-00070 VO 23 IS Suppl 1 A1 Å Österlund A1 E Arlander A1 L I Eriksson A1 S GE Lindahl YR 1998 UL http://rapm.bmj.com/content/23/Suppl_1/70.abstract AB