Utrogestanunexplained subfertilityDutch fertility clinicsMOH-IUIintrauterine inseminationClinicalTrials.govWHO registryEU CTIS trial register
…medication, applying a daily dosage of 2dd 300 mg progesterone (Utrogestan) or 2dd 300 mg placebo in vaginal capsules on the second day af…