Paliwal Vimal Kumar, Singh Prabhat, Rahi Sushil Kumar, Agarwal Vikas, Gupta Rakesh Kumar
Department of Neurology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.
J Clin Rheumatol. 2012 Jun;18(4):207-8. doi: 10.1097/RHU.0b013e3182598915.