Ommi, Davood Effects of Clonidine Premedication on Intraoperative Blood Loss in Patients With and Without Opium Addiction During Elective Femoral Fracture Surgeries. [electronic resource] - Anesthesiology and pain medicine Aug 2015 - e23626 p. digital Publication Type: Journal Article ISSN: 2228-7523 Standard No.: 10.5812/aapm.23626 doi