Garg Keshav Kumar, Agarwal Anil, Gautam Sujeet
Pain and Palliative Medicine, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.
Pain Clinic, Department of Anaesthesia, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Uttar Pradesh, India.
Pain Physician. 2020 Jul;23(4):E428.