Narang T, Dogra S, Kanwar A J, Radotra B D
Department of Dermatology, Venereology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
Clin Exp Dermatol. 2008 Nov;33(6):805-7. doi: 10.1111/j.1365-2230.2007.02658.x.