RT Journal Article SR Electronic T1 6-year follow-up of 522 HIV-positive individuals screened for Mycobacterium tuberculosis infection in Denmark JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 540 OP 543 DO 10.1183/09031936.00170913 VO 44 IS 2 A1 Christian Soborg A1 Morten Ruhwald A1 Peter H. Andersen A1 Pernille Ravn YR 2014 UL http://erj.ersjournals.com/content/44/2/540.abstract AB