Sarkar, MD, DNB, S., Lal, MD, R., Varshney, MD, M., & Balhara, MD, DNB, MNAMS, Y. P. S. (2017). Tramadol for maintenance in opioid dependence: A retrospective chart revie. Journal of Opioid Management, 13(5), 329–334. https://doi.org/10.5055/jom.2017.0408