B. J. , N. S. Brewer, and K. J. Ryan, Laboratory Diagnosis of lower Respiratory tract infections, 1978.

M. Médecine, !. Infectieuses-il, H. R. Brodgen, S. T. , and A. G. , S Le Metronidazole dans les infections à anaérobies, son activité, sa pharmacocinétique et ses indications, pp.478-486, 1980.

A. Drug and I. Service, 417 ADIS PRESSE 1978 [I] BROOK I. Bacterial Colonization, Tracheobronchitis and Pneumonia following Tracheostomy and Long-term Intubation in Pediatric patients, CHEST, vol.76, issue.4, pp.16-387, 1978.

B. L. , T. J. Mobin, U. K. , B. J. , and G. W. , O Bacterial Colonization Profile with Tracheal Intubation and Mechanical Ventilation, Arch. Surg, vol.104, pp.647-651, 1972.

Ï. Casthely-p, C. J. , R. , and T. M. , Tracheobronchial Cytologie Changes during Prolonged Cannulation, Anesthesia and Analgesia, pp.59-69, 1980.

H. H. Beaty-h, N Transtracheal Aspiration in the Evaluation of Patients with Pulmonia, Annals of Internal Medicine, pp.72-74, 1970.

H. Ej, V. J. , G. Wh, and P. A. , Pharyngeal Aspiration in Normal Adults and Patients with Depressed Consciousness

J. Wg, P. Ak, S. J. , and T. G. , Nosocomial Respiratory Infections with gram negative Bacilli. The significance of colonization of the respiratory Tract, Annals of Internal Medicine, pp.77-701, 1972.

L. L. Cathala-b, J. M. , V. C. , and A. C. , Infection broncho-pulmonaire et antibiothérapie dans un service de Réanimation Polyvalente

L. G. , G. G. Berman-l, and K. E. , Antibacterial Activity of the bronchopulmonary tree, Clin. Research, vol.9, p.173, 1961.

L. A. Mac, Bacteriology of lower Respiratory tract Secretions, sputum, and upper respiratory tract secretions in "normals" and chronic bronchitics, THE LANCET, vol.2, p.11121115, 1959.

M. Carthy-c, S. M. , and P. R. , The indigenous oral flora of man. I the newborn to the 1 year old infant, Arch. Oral. Biol, vol.1070, p.61, 1965.

~. S. Manuja, Complications of long-term nasal and oral endotracheal intubation, The Journal of Laryngology & Otology, vol.82, issue.04, pp.93-369, 1979.
DOI : 10.1093/bja/37.8.566

~. Michel-briand-y, M. Briand-c, V. J. , and L. Y. , Infections pulmonaires graves à pseudomonas aeruginosa dans un service de Rêanimation à propos, de 10 cas. Etudes êpidêmiologiques et dêpistage systêmatique chez 623 malades, La Pre~se Mêdicale, pp.79-126, 1971.

~. Pecora-d, V A method of Securing Uncontaminated Tracheal Secretions for Bacterial Examination

!. Gf and P. , Transtracheal Aspiration in the <liagnosis of Acute Lower Respiratory Tract infection, Amer. Rev. Resp. Dis, vol.86, p.755758, 1962.

P. D. Yegian-d, Bacteriology of the lower Respiratory tract in health and chronic Diseases

P. R. , R. F. , F. F. Mc, N. T. , and C. J. , The bacteriology of the lower respiratory tract. Bronchoscopy study of 100 clinical Cases

R. R. , S. P. , S. J. , and F. W. Small-p, A Adherence of Pseudomonas Aeruginosa to tracheal cells injured by influenza infection or by endotracheal intubation, Infection and Immunity, pp.27-29, 1980.

S. Sn, D. J. , B. C. , D. , P. T. et al., Sources of gram negative bacilli colonizing the trachea of intubated patients, The Journal of Infectious Diseases, pp.138-140, 1979.