Koorts, Alida Maria; Levay, Peter Ferenc; Hall, Alan Norman; Van der Merwe, Christiaan Frederick; Becker, Piet J.; Frantzen, Doron Johan Manuel; Viljoen, Margaretha(Sage, 2012)
Masekela, Refiloe; Anderson, Ronald; Moodley, Teshni; Kitchin, Omolemo P.; Risenga, Samuel Malamulele; Becker, Piet J.; Green, Robin J.(International Union Against Tuberculosis and Lung Disease, 2012-01)