PT - JOURNAL ARTICLE AU - Andrew Worster TI - α-channel and calcium-channel blockers are ineffective as medical expulsive therapy for ureteral stones regardless of size and location AID - 10.1136/ebmed-2015-110244 DP - 2015 Oct 01 TA - Evidence Based Medicine PG - 171--171 VI - 20 IP - 5 4099 - http://ebm.bmj.com/content/20/5/171.short 4100 - http://ebm.bmj.com/content/20/5/171.full SO - Evid Based Med2015 Oct 01; 20