Amini V, Kamani F. Preoperative abdominal ultrasonography: validity and it’s diagnostic errors in suspected appendicitis. Gastroenterol Hepatol Bed Bench [Internet]. 2010 Jun. 20 [cited 2024 Apr. 24];3(3). Available from: https://journals.sbmu.ac.ir/ghfbb/index.php/ghfbb/article/view/100