Kumar, S., Choudhary, A. S., Gupta, D., Goutham, B., Duraiswamy, P. and Kulkarni, S. (2009) “Microbial contamination in dental unit water lines (DUWL) in private dental clinics of Udaipur City, India”, International Journal of Infection Control, 5(1). doi: 10.3396/ijic.v5i1.3368.