title: Likelihood ratios to determine 'does this patient have appendicitis?': comment and clarification.
authors.forename: K
authors.initials: K
authors.lastname: Witt
authors.forename: M
authors.initials: M
authors.lastname: Mäkelä
authors.forename: O
authors.initials: O
authors.lastname: Olsen
mesh_terms: D001064:Appendicitis / Q000175:diagnosis*; D006801:Humans; D016013:Likelihood Functions; D012680:Sensitivity and Specificity