by ’t Hart, L. M., de Klerk, J. A., Bouland, G. A., Peerlings, J. H. D., Blom, M. T., Cramer, S. J., Bijkerk, R., Beulens, J. W. J., Slieker, R. C.
Published in Endocrine (01.10.2024)

by Essler, F. H. L., de Klerk, A. J. J. M.
Published in Physical review. X (01.09.2024)

by Roeleveld, Peter P., de Klerk, J. C. A.
Published in World journal for pediatric & congenital heart surgery (01.01.2018)

by DE KLERK, A. J, JONCK, L. M
Published in South African medical journal (02.11.1991)

by Essler, F. H. L, de Klerk, A. J. J. M
Year of Publication 23.07.2023

by de Klerk, A. J. J. M, Caux, J. -S
Year of Publication 22.01.2023

by Louw, J A, de Klerk, A J, Myburgh, J G
Published in South African medical journal (03.10.1987)

by de Klerk, A.J. & Jonck, L.M.
Published in South African medical journal (21.08.1982)

by du Toit, H.J., Erasmus, F.R., Macfarlane, C.M., Taljaard, J.J.F., King, J.B., de Klerk, A.J. & Elk, E.
Published in South African medical journal (30.06.1984)

by du Toit, H.J., Erasmus, F.R., Macfarlane, C.M., Taljaard, J.J.F., Shephard, E.G., King, J.B. & de Klerk, A.J.
Published in South African medical journal (01.01.1984)

by Essler, F H L, A J J M de Klerk
Published in arXiv.org (23.07.2023)

by A J J M de Klerk, J -S Caux
Published in arXiv.org (02.04.2023)

by van der Merwe, D F, De Klerk, A J, Vlok, G J
Published in South African medical journal (19.05.1990)

by Louw, J A, de Klerk, A J, Myburgh, J G
Published in South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde (03.10.1987)

by Lindeboom, H.J., De Klerk, H.A.J., Sandee, A.J.J.
Published in Netherlands journal of sea research (01.01.1984)

by Naude, W. du T., den Ende, J., Botha P., Forder, A., Hyland, J., de Klerk, H.C., Neiteler, B.F., Koornhof, H.J., Robinson, R., Robins-Browne, R., Block, C., Appelbaum, P.C., Africa, C.W., van Rensburg, A.J., Jooste, P.J., Crewe-Browne, H. & Fernandez, A.
Published in South African medical journal (05.11.1977)

by DE KLERK, J. A.
Published in West-Indische gids (01.01.1921)