Thomas, S., R. Palmer, E. Phillipo, and G. Chipungu. “Reducing Bacterial Contamination in an Orthopedic Theatre Ventilated by Natural Ventilation, in a Developing Country”. The Journal of Infection in Developing Countries, Vol. 10, no. 05, May 2016, pp. 518-22, doi:10.3855/jidc.7436.