Panigrahi, S., S. Bhoi, and M. K. Yadav. “Study on Clinical Features and Diagnosis of Acute Abdomen”. 2021. International Journal of Health and Clinical Research, vol. 4, no. 5, Mar. 2021, pp. 207-12, https://ijhcr.com/index.php/ijhcr/article/view/1119.