1. Mycobacteria in water;Collins;J Appl Bacteriol,1984
2. Water as a source of potentially pathogenic mycobacteria;Goslee;Am Rev Respir Dis,1976
3. Contamination of flexible fibreoptic bronchoscopes;Pappas;Am Rev Respir Dis,1983
4. Cross contamination of bronchial washings;Uttley;BMJ,1990
5. Bronchoscopy and infection control;Woodcock;Lancet,1989