Aamna Nazir, Muhammad Idrees Anwar, Maryam Barkat, and Muhammad Atif. 2020. “Open Versus Laparoscopic Appendectomy for Perforated Appendicitis: A Randomized Prospective Study”. Pakistan Journal of Medical Research 58 (4):155-58. https://pjmr.org.pk/index.php/pjmr/article/view/16.