RT Journal Article SR Electronic T1 Unanswered questions about chronic bronchitis. JF The Journal of the College of General Practitioners JO J Coll Gen Pract FD British Journal of General Practice SP 3 OP 8 VO 11 IS Suppl 2 A1 Scadding, J. G. YR 1966 UL http://bjgp.org/content/11/Suppl_2/3.abstract AB