by Tielemans, Erik, Burdorf, Alex, te Velde, Egbert, Weber, Rob, van Kooij, Roelof, Heederik, Dick
Published in American journal of epidemiology (01.07.2002)

by Tielemans, Erik, Burdorf, Alex, te Velde, Egbert R., Weber, Rob F.A., van Kooij, Roelof J., Veulemans, Hendrik, Heederik, Dick J.J.
Published in Fertility and sterility (01.04.1999)

by Elisen, Marc G.L.M., van Kooij, Roelof J., Nolte, Martijn A., Arnoud Marquart, J., Lock, Tycho M.T.W.T., Bouma, Bonno N., Meijers, Joost C.M.
Published in Biology of reproduction (01.03.1998)

by Cohlen, B J, te Velde, E R, van Kooij, R J, Looman, C W, Habbema, J D
Published in Human reproduction (Oxford) (01.06.1998)

by van Kooij, Roelof J., Looman, Caspar W.N., Habbema, Johannes D.F., Dorland, Marinus, te Velde, Egbert R.
Published in Fertility and sterility (01.11.1996)

by In't Veld, P A, Broekmans, F J, de France, H F, Pearson, P L, Pieters, M H, van Kooij, R J
Published in Human reproduction (Oxford) (01.04.1997)

by Tielemans, Erik, van Kooij, Roelof, Looman, Caspar, Burdorf, Alex, te Velde, Egbert, Heederik, Dick
Published in Fertility and sterility (01.10.2000)

by Gianaroli, Luca, Plachot, Michelle, van Kooij, Roelof, Al-Hasani, Safaa, Dawson, Karin, DeVos, Anick, Magli, M.Cristina, Mandelbaum, Jacqueline, Selva, Jacqueline, van Inzen, Wouter, Embryology, Committee of the Special Interest Group on
Published in Human reproduction (Oxford) (01.10.2000)

by ELISEN, M. G. L. M, VAN KOOIJ, R. J, NOLTE, M. A, MARQUART, J. A, LOCK, T. M. T. W. T, BOUMA, B. N, MEIJERS, J. C. M
Published in Biology of reproduction (01.03.1998)

by Gianaroli, Luca, Plachot, Michelle, Roelof van Kooij, Al-Hasani, Safaa, Dawson, Karin, DeVos, Anick, M.Cristina Magli, Mandelbaum, Jacqueline, Selva, Jacqueline, Wouter van Inzen, Committee of the Special Interest Group on Embryology
Published in Human reproduction (Oxford) (01.10.2000)

by van Kooij, Roelof J., van Oost, Bernard A.
Published in Fertility and sterility (01.08.1992)

by Cohlen, Bernard Jan, te Velde, Egbert Rein, Scheffer, Gabrielle, van Kooij, Roelof Jan, de Brouwer, Carin Petronella Maria, van Zonneveld, Piet
Published in Fertility and sterility (01.09.1993)

by Cohlen, Bernard J., te Velde, Egbert R., Wissmann, Dolf, van Kooij, Roelof J., van Zonneveld, Pieter, Habbema, J. Dik F.
Published in Fertility and sterility (01.06.1995)

by Van Kooij, Roelof J., Roelofs, Hendrikus J.M., Kathmann, Godefrida A.M., Kramer, Mebius F.
Published in Fertility and sterility (01.09.1980)