1. Jat MA, Al-Swailmi FK, Mehmood Y, et al. Histopathological examination of appendicectomy specimens at a district hospital of Saudi Arabia. Pak J Med Sci. 2015;31(4):891-4
2. Marudanayagam R, Williams GT, Rees BI. Review of the pathological results of 2660 appendicectomy specimens. J Gastroenterol. 2006;41:745-9.
3. Lamture YR, Gajbhiye VP, Hahapurkar VV. The role of ultrasonography in acute appendicitis. Int Surg J. 2017;4(5):1769-72.
4. Alvarado A. A Practical Score for the Early Diagnosis of Acute Appendicitis. Annals of Emergency Medicine. 1986;15(5):557-64.
5. Chong C, Adi MIW, Thien A, et al. Development of the RIPASA score: a new appendicitis scoring system for the diagnosis of acute appendicitis. Singapore Med J. 2010;51(3):220-5.
6. Chong C, Thien A, Suyoi A, et al. Evaluation of the RIPASA score: a new scoring system for the diagnosis of acute appendicitis. Brunei Med J. 2010;6(1):17-26.
7. Butt MQ, Chatha SS, Ghumman AQ, Farooq M. RIPASA Score: A New Diagnostic Score for Diagnosis of Acute Appendicitis. Journal of the College of Physicians and Surgeons Pakistan. 2014;24(12):849-97.
8. Rangel CA, Limon IO, Vera AG, Guardiola PM Valdivieso EAS. Sensitivity, specificity and reliability of the RIPASA score for Diagnosis of Acute Appendicitis in Relation to the Alvarado Score. Cirugia Espanola. 2018;3(96):149-54.
9. Rodrigues W, Sindhu S. Diagnostic Importance of Alvarado and RIPASA Score in Acute Appendicitis. Int J Sci Stud. 2017;4(11):57-60.
10. Nanjundaiah N, Mohammed A, Shanbhag V, et al. A Comparative Study of RIPASA Score and ALVARADO Score in the Diagnosis of Acute Appendicitis. Journal of Clinical and Diagnostic Research. 2014;8(11):NC03-5.
11. Man E, Simonka Z, Varga A, et al. Impact of the Alvarado score on the diagnosis of acute appendicitis: comparing clinical judgment, Alvarado score and a new modified score in suspected appendicitis: a prospective randomized clinical trial. Surg Endosc. 2014.
12. Ozkan S, Duman A, Durukan P, et al. The accuracy rate of Alvarado score, ultrasonography, and computerized tomography scan in the diagnosis of acute appendicitis in our center . Niger J Clin Pract. 2014;17:413-8.
13. Meltzer AC, Baumann BM, Chen EH, et al. Poor sensitivity of a modified Alvarado score in adults with suspected appendicitis. Ann Emerg Med. 2013;62:126–31.
14. Golden SK, et al. Prospective evaluation of the ability of clinical scoring systems and physician-determined likelihood of appendicitis to obviate the need for CT. Emerg Med J. 2016 Jul;33:458.