1. Bronchoalveolar lavage as a research tool;AS Rose;Semin Respir Crit Care Med,2007
2. Malawians permit research bronchoscopy due to perceived need for healthcare;N Mtunthama;Journal of medical ethics,2008
3. Complications of fiberoptic bronchoscopy;WF Credle Jr.;The American review of respiratory disease,1974
4. Deaths and complications associated with fiberoptic bronchoscopy;PM Suratt;Chest,1976
5. World Medical Association. WMA Declaration of Helsinki—Ethical Principles for Medical Research Involving Human Subjects 2013 [cited 2014 28th April]. Available from: http://www.wma.net/en/30publications/10policies/b3/.