Evaluation of success rate and complications of internal jugular vein catheterization with and without ultrasonography guidance: a randomized clinical trial

1 Students’ Research Committee, Baqiyatallah University of Medical Sciences, Tehran, IR-Iran Trauma Research Center, Emergency Department, Faculty of Medicine, Baqiyatallah University of Medical Sciences, Tehran, IR-Iran 2* Corresponding author: Mehrdad Faraji, Trauma Research Center, Emergency Department, Faculty of Medicine, Baqiyatallah University of Medical Sciences, Tehran, IR-Iran, e-mail: mehrfar@yahoo.com, Tel/Fax: 00982181264354