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Is, in infertile women undergoing a basic fertility work-up, tubal flushing with oil-based contrast medium during hysterosalpingography (HSG) cost-effective compared to tubal flushing by hysterosalpingo-foam sonography (HyFoSy)? A randomized controlled trial.

The main objective of this study is to determine whether tubal flushing with oil-based contrast during HSG results into more pregnancies leading to live births when compared to tubal flushing with ExEm-foam during HyFoSy, and whether this approach…

Beta-Alanine Supplementation in patients with COPD following a pulmonary rehabilitation program.

The primary objective is to compare the effects of daily beta-alanine supplementation or a placebo supplement on exercise tolerance (cycle endurance time).  The secondary objectives are:1) To compare the effects of daily oral beta…