Reproductive BioMedicine Online, 41(6), 1038-1044. Elsevier Reproductive BioMedicine Online, 41(6), 1038-1044. ELSEVIER SCI LTD van Welie, N, Rosielle, K, Dreyer, K, van Rijswijk, J, Lambalk, CB, van Geloven, N, Mijatovic, V, Mol, B W, van Eekelen, R & H2Oil Study Group 2020, ' How long does the fertility-enhancing effect of hysterosalpingography with oil-based contrast last? ', Reproductive BioMedicine Online, vol. 41, no. 6, pp. 1038-1044 . https://doi.org/10.1016/j.rbmo.2020.08.038, https://doi.org/10.1016/j.rbmo.2020.08.038 Reproductive biomedicine online, 41(6), 1038-1044. Elsevier