Treatment effect of oil-based contrast is related to experienced pain at HSG: a post-hoc analysis of the randomised H2Oil study

N. Van Welie^*, K. Dreyer, J. Van Rijswijk, H. R. Verhoeve, M. Goddijn, A. W. Nap, J. M.J. Smeenk, M. A.F. Traas, H. G.M. Rijnsaardt-Lukassen, A. J.C.M. Van Dongen, P. Bourdrez, J. P. De Bruin, A. V. Sluijmer, A. P. Gijsen, P. M. Van De Ven, C. B. Lambalk, V. Mijatovic, B. W.J. Mol

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