GARG, SUMEET, RAJU SHARDA, S K TIWARI, and KASHI NATH. 2012. “Fentanyl and Buprenorphine As Premedicants to Ketamine Anaesthesia in Large White Yorkshire Pigs”. The Indian Journal of Animal Sciences 82 (3). https://epubs.icar.org.in/index.php/IJAnS/article/view/16061.