TY - JOUR T1 - No cure for the common cold JF - Thorax JO - Thorax SP - 230 LP - 230 DO - 10.1136/thorax.58.3.230 VL - 58 IS - 3 AU - K Hattotuwa Y1 - 2003/03/01 UR - http://thorax.bmj.com/content/58/3/230.abstract N2 - ▴ Barrett BP, Brown RL, Locken K, et al. Treatment of the common cold with unrefined Echinacea. A randomized, double-blind, placebo-controlled trial. Ann Intern Med2002;137:939–46OpenUrlPubMedWeb of Science Previous studies of Echinacea have reported success varying from 10% to 50% in the treatment of colds. A few randomised trials have reported only a small effect in preventing colds.In this randomised, double blind, placebo controlled study the authors report on the effect of 10 days … ER -