Pregnancy is predictable: A large-scale prospective external validation of the prediction of spontaneous pregnancy in subfertile couples

J. W. van der Steeg^*, P. Steures, M. J.C. Eijkemans, J. D.F. Habbema, P. G.A. Hompes, F. J. Broekmans, H. J.H.M. van Dessel, P. M.M. Bossuyt, F. van der Veen, B. W.J. Mol

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