Parajuli, Santosh Sharma, and Jeju Nath Pokharel. 2016. “Ultrasound Guided Versus Land Mark Technique for Internal Jugular Central Venous Catheterization in Cardiac Surgical Patients- a Randomized Trial”. Journal of Society of Anesthesiologists of Nepal 3 (1):18-21. http://www.jsan.org.np/jsan/index.php/jsan/article/view/95.