van Welie, N Treatment effect of oil-based contrast is related to experienced pain at HSG: a post-hoc analysis of the randomised H2Oil study. [electronic resource] - Human reproduction (Oxford, England) 12 2019 - 2391-2398 p. digital Publication Type: Journal Article; Multicenter Study; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 1460-2350 Standard No.: 10.1093/humrep/dez206 doi Subjects--Topical Terms: AdultContrast MediaEthiodized OilFemaleHumansHysterosalpingography--adverse effectsIothalamic Acid--analogs & derivativesPain, Procedural--etiologyPregnancyPregnancy Rate