Impoinvil D.E., Ahmad S., Troyo A., Keating J., Githeko A.K., Mbogo C.M., Kibe L., Githure J.I., Gad A.M., Hassan A.N., Orshan L., Warburg A., Calderón-Arguedas O., Sánchez-Loría V.M., Velit-Suarez R., Chadee D.D., Novak R.J. and Beier J.C. (2007) Comparison of mosquito control programs in seven urban sites in Africa, the Middle East, and the Americas. Health Policy 83, 196–212.