RT Journal Article SR Electronic T1 Dual Effects of Clonidine on Rabbit Pulmonary Arteries JF Regional Anesthesia: The Journal of Neural Blockade in Obstetrics, Surgery, & Pain Control JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 25 OP 25 DO 10.1136/rapm-00115550-199318011-00025 VO 18 IS Suppl 1 A1 Tai-Shion Lee A1 Yishan Xie A1 Xiuhua Hou YR 1993 UL http://rapm.bmj.com/content/18/Suppl_1/25.abstract AB