Müller, I., Gall, S., Beyleveld, L., Gerber, M., Pühse, U., du Randt, R., Steinmann, P., Zondie, L., Walter, C., Utzinger, J. Shrinking risk profiles after deworming of children in Port Elizabeth, South Africa, with special reference to Ascaris lumbricoides and Trichuris trichiura. Geospatial Health 2017, 12:601.doi: 10.4081/gh.2017.601.