Puri Poonam, Ramesh V, Singh Avninder, Muralidhar Sumathi, Capoor Malini Rajeev
Department of Dermatology, Venereology, Safdarjung Hospital and Vardhaman Mahavir Medical College, New Delhi, India.
Int J Dermatol. 2012 Jul;51(7):777-9. doi: 10.1111/j.1365-4632.2011.05319.x.