RT Journal Article SR Electronic T1 NO SMOKE JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 125 OP 126 VO 31 IS 223 A1 H. W. K. Acheson YR 1981 UL http://bjgp.org/content/31/223/125.4.abstract AB