%0 Journal Article %A Brian K. Tsang %A Zhi He %A Ing K. Ho %A John H. Eichhorn %T Higher Efficacy of Intrathecal Morphine in Female versus Male Rats %D 1999 %R 10.1136/rapm-00115550-199924031-00028 %J Regional Anesthesia & Pain Medicine %P 28-28 %V 24 %N Suppl 1 %U https://rapm.bmj.com/content/rapm/24/Suppl_1/28.full.pdf