RT Journal Article SR Electronic T1 LECTURE NOTES ON RESPIRATORY DISEASE. 2nd EDITION JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 506 OP 507 VO 32 IS 241 A1 Gregg, Ian YR 1982 UL http://bjgp.org/content/32/241/506.3.abstract AB