RT Journal Article SR Electronic T1 Investigations for tuberculosis contacts: what are the real issues of all the efforts? JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP thoraxjnl-2017-210110 DO 10.1136/thoraxjnl-2017-210110 A1 Jean-Pierre Zellweger YR 2017 UL http://thorax.bmj.com/content/early/2017/04/17/thoraxjnl-2017-210110.abstract AB