PT - JOURNAL ARTICLE ED - , TI - The World Health Organization clinical decision rule was specific but not sensitive for predicting group A β haemolytic streptococcus in children with pharyngitis AID - 10.1136/ebm.11.4.122 DP - 2006 Aug 01 TA - Evidence Based Medicine PG - 122--122 VI - 11 IP - 4 4099 - http://ebm.bmj.com/content/11/4/122.short 4100 - http://ebm.bmj.com/content/11/4/122.full SO - Evid Based Med2006 Aug 01; 11