E. Nel

发表

R. Gie, P. Donald, N. Beyers, 1996, Tubercle and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease.

R. Gie, P. Donald, N. Beyers, 1997, The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease.

K. Olsen, G. Mccracken, P. Donald, 1995, Clinical infectious diseases : an official publication of the Infectious Diseases Society of America.

R. Gie, P. Donald, N. Beyers, 1995, South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde.

J. Kimpen, P. Donald, J. Schoeman, 2004, Tropical medicine & international health : TM & IH.

R. Gie, N. Beyers, H. S. Schaaf, 1995, The Pediatric infectious disease journal.

R. Gie, P. Donald, N. Beyers, 2005, Pediatric Radiology.