Balmelli C, Zysset F, Pagnamenta A, Francioli P, Lazor-Blanchet C, Zanetti G, Zellweger J-P. Contact tracing investigation after professional exposure to tuberculosis in a Swiss hospital using both tuberculin skin test and IGRA. Swiss Med Wkly [Internet]. 2014 Aug. 10 [cited 2024 Apr. 25];144(3334):w13988. Available from: https://smw.ch/index.php/smw/article/view/1897