Melanosis coli is a condition where the inner lining of the colon turns dark brown or black, usually due to long term use of certain laxatives #doctorsdiary #askdoc #doctorsofinstagram Diagnosis and Management of Hepatitis C Virus Infection Ronita Mukherjee, Andrew Burns, Diane Rodden, Frances Chang, Manita Chaum, Nancy Garcia, Nikitha Bollipalli, Angelika Niemz, 2015 HCV genotyping using statistical classification approach Journal of Biomedical Science Springer Nature Link Hepatitis C Surveillance Guidance Viral Hepatitis CDC Current advances in Hepatitis C diagnostics Journal of Biological Engineering Springer Nature Link