TY - JOUR T1 - Long acting beta 2 agonists and the risk of life threatening asthma. JF - Thorax JO - Thorax SP - 1 LP - 2 DO - 10.1136/thx.53.1.1 VL - 53 IS - 1 AU - P Ernst Y1 - 1998/01/01 UR - http://thorax.bmj.com/content/53/1/1.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -