Sarkar, MD, DNB, Siddharth, Rakesh Lal, MD, Mohit Varshney, MD, and Yatan Pal Singh Balhara, MD, DNB, MNAMS. 2017. “Tramadol for Maintenance in Opioid Dependence: A Retrospective Chart Revie”. Journal of Opioid Management 13 (5):329-34. https://doi.org/10.5055/jom.2017.0408.