Chest. 2007 Jun;131(6):1898-906. Diagnosing tuberculosis infection in the 21st century: new tools to tackle an old enemy. Lalvani A.
Ann Intern Med. 2007 Mar 6;146(5):340-54. Meta-analysis: new tests for the diagnosis of latent tuberculosis infection: areas of uncertainty and recommendations for research. Menzies D, Pai M, Comstock G.
Lancet Infect Dis. 2004 Dec;4(12):761-76. Interferon-gamma assays in the immunodiagnosis of tuberculosis: a systematic review. Pai M, Riley LW, Colford JM Jr.