IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-10-5-35332 Original Research Paper Clinico-Demographic study of Patients of Acanthosis Nigricans at SKMCH, Muzaffarpur, Bihar Barunesh Kishore Dr. Dr. Debarshi Jana Dr. May 2021 10 5 01 02