Breed, Dorothy; Meyer, Leith Carl Rodney; Steyl, Johan Christian Abraham; Goddard, Amelia; Burroughs, Richard E.J.; Kohn, Tertius Abraham(Oxford University Press, 2019-07)
Hartman, Marthinus Jacobus; Kirberger, Robert M.; Tordiffe, Adrian Stephen Wolferstan; Boy, Sonja Catharina; Schoeman, Johan P.(BMJ Publishing Group, 2015-02)