480 mg I/ml

Live birth after additional tubal flushing with oil-based contrast versus no additional flushing: a randomised, multicentre, parallel group pragmatic trial in infertile women with at least one patent tube at Hysterosalpingo-foam sonography

Oil- versus water-based contrast media for hysterosalpingography (HSG) in infertile women with unevaluated indications: a randomized controlled trial (H2Oil-2 study)