PT  - JOURNAL ARTICLE
AU  - Brian K. Tsang
AU  - Wichai Wongchanapai
AU  - Zhi He
AU  - Ing K. Ho
AU  - John H. Eichhorn
TI  - Physical Dependence Induced by Intrathecal Butorphanol Versus Morphine in Rats
AID  - 10.1136/rapm-00115550-199823031-00099
DP  - 1998 May 01
TA  - Regional Anesthesia &amp;amp; Pain Medicine
PG  - 99--99
VI  - 23
IP  - Suppl 1
4099  - http://rapm.bmj.com/content/23/Suppl_1/99.short
4100  - http://rapm.bmj.com/content/23/Suppl_1/99.full
SO  - Reg Anesth Pain Med1998 May 01; 23