Rao, G Raghu Rama2016-11-172016-11-172016-11Rao G Raghu Rama. Essentials in Dermatology, Venereology and Leprology. Indian Journal of Dermatology, Venereology and Leprology. 2016 Nov-Dec; 82(6): 754.http://imsear.searo.who.int/handle/123456789/178534enArticle