Azarudeen, M., B. S. Sharma, P. K. Jain, A. K. Goyal, and B. Malhotra. “Study of Quantitative Bacterial Cultures of Non-Bronchoscopic Samples in Ventilator Associated Pneumonia”. International Journal of Contemporary Pediatrics, vol. 5, no. 5, Aug. 2018, pp. 1837-43, doi:10.18203/2349-3291.ijcp20183517.