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Hartung TK, Maulu A, Nash J, Fredlund VG.Hartung TK, et al. Among authors: fredlund vg.S Afr Med J. 2002 Jun;92(6):455-8.S Afr Med J. 2002.PMID: 12146131
Williams CH, Fredlund VG.Williams CH, et al. Among authors: fredlund vg.S Afr Med J. 2002 Jul;92(7):480-1.S Afr Med J. 2002.PMID: 12197176No abstract available.
Ballo R, Viljoen D, Machado M, Keene D, Horton W, Fredlund V, Jacobs M, Martell R, Beighton P, Ramesar R.Ballo R, et al.S Afr Med J. 1996 Aug;86(8):956-8.S Afr Med J. 1996.PMID: 8823421