Raiger, Lalit K., Sandeep Sharma, Pramod Jain, and Shailendra Pareek. “Intrathecal Low Dose Bupivacaine With Fentanyl or Clonidine in TURP Surgery: A Prospective Randomized Double Blind Study”. Academia Anesthesiologica International 3, no. 2 (January 20, 2019): 13-17. Accessed May 11, 2024. http://aijournals.com/index.php/aan/article/view/428.