Chong CF, Adi MI, Thien A, Suyoi A. Development of the RIPASA score: a new appendicitis scoring system for the diagnosis of acute appendicitis. Singapore Med J. 2010;51(3):220-225.
Chong CF, Thien A, Mackie AJ, et al. Comparison of RIPASA and Alvarado scores for the diagnosis of acute appendicitis. Singapore Med J. 2011;52(5):340-345.
RIPASA Score for Acute Appendicitis
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