Ramaswami B, Nataraj Kumar, Rakesh Shaganti, & A.Anusha. (2022). Comparative study of serum cholesterol, bilirubin, calcium and phosphorous in different types of gallstones, age and sex. International Journal of Health and Clinical Research, 5(3), 548–552. Retrieved from https://www.ijhcr.com/index.php/ijhcr/article/view/4493