3) The official statemint of ATS and CDC. Diagnostic standards and classification of tuberculosis in adults and children. Am J Respir Crit Care Med. (2000) vol.161, p.1376-1395.
4) ANDERSON C. Comparison of sputum induction with fiber-optic bronchoscopy in the diagnosis of tuberculosis. Am J Respir Crit Care Med. (1995) vol.152, p.1570-1574.