Maweru, P.; Anderson, Ronald; Steel, Helen C.; Venter, Willem Daniel Francois; Murdoch, D.; Feldman, Charles(Health and Medical Publishing Group, 2013-11)
Green, Robin J.; Feldman, Charles; Schoub, Barry D.; Richards, Guy A.; Madhi, Shabir A.; Zar, Heather J.; Lalloo, Umesh G.(Health and Medical Publishing Group, 2008-03)