RT Journal Article SR Electronic T1 Change in smoking habits in a general practice. JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 149 OP 150 VO 23 IS 127 A1 Handel, S. YR 1973 UL http://bjgp.org/content/23/127/149.abstract AB