Bupivacaine/Butorphanol/Epinephrine for Epidural Anesthesia in Obstetrics: Maternal and Neonatal Effects
T. K. Abboud, A. Reyes, Z. Steffens, A. Afrasiabi, L. D'onofrio, J. Davidson, J. Zhu, N. Khoo, R. Paul, M. Mantilla, P. Mosaad
Regional Anesthesia: The Journal of Neural Blockade in Obstetrics, Surgery, & Pain Control Sep 1989, 14 (5) 219-224; DOI: 10.1136/rapm-00115550-198914050-00004