Reproductive Biomedicine Online, 34, 6, pp. 619-626 Reproductive Biomedicine Online, 34, 619-626 Reproductive Biomedicine Online, 34(6), 619. Elsevier Reproductive BioMedicine Online, 34(6), 619-626. Elsevier Bensdorp, A J, van der Steeg, J W, Steures, P, Habbema, J D F, Hompes, P G A, Bossuyt, P M M, van der Veen, F, Mol, B W J, Eijkemans, M J C & CECERM study group 2017, ' A revised prediction model for natural conception ', Reproductive BioMedicine Online, vol. 34, no. 6, pp. 619-626 . https://doi.org/10.1016/j.rbmo.2017.03.014 Reproductive biomedicine online, 34(6), 619-626. Elsevier