Lucas MBachmann, EstherKolb, Michael TKoller, JohannSteurer, Gerben terRiet
BachmannL M, KolbE, KollerM T, SteurerJ, RietG t.
Accuracy of Ottawa ankle rules to exclude fractures of the ankle and mid-foot: systematic reviewBMJ 2003; 326 :417 doi:10.1136/bmj.326.7386.417