Pre-conception and first trimester metformin on miscarriage risk in women with polycystic ovary syndrome: a randomised, placebo-controlled trial. - Devall, A.; Smith, R.; Priest, L.; Mitchell, G.; Nnamani, P.; Cheed, V.; Middleton, L.; K., Vigneswaran; Melo, P.; A., Coomarasamy (Human Reproduction, 2026)