Prasad Kameshwar, Jaeschke Roman, Wyer Peter, Keitz Sheri, Guyatt Gordon
Department of Neurology, Neurosciences Centre, All India Institute of Medical Sciences, New Delhi, India.
J Gen Intern Med. 2008 May;23(5):635-40. doi: 10.1007/s11606-007-0453-4. Epub 2008 Jan 5.