during the second stage , 22 of 37 ( 59 % ) women in the bupivacaine-fentanyl group , and 23 of 35 ( 66 % ) women in the bupivacaine-only group , rated their analgesia as excellent or good ( p = ns ) .
C1329986
bupivacaine-fentanyl
C0006400
bupivacaine