RT Journal Article SR Electronic T1 Advances and retreats in tuberculosis in the last 30 years JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 260 OP 261 DO 10.7861/clinmedicine.9-3-260 VO 9 IS 3 A1 Paul Nunn YR 2009 UL http://www.rcpjournals.org/content/9/3/260.abstract