TY - JOUR T1 - Decline of FEV1. JF - Thorax JO - Thorax SP - 161 LP - 164 DO - 10.1136/thx.42.3.161 VL - 42 IS - 3 AU - P D Oldham Y1 - 1987/03/01 UR - http://thorax.bmj.com/content/42/3/161.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -