Complications of first-trimester abortion by vacuum aspiration after cervical preparation with and without misoprostol: a multicentre randomised trial

Meirik O, My Huong NT, Piaggio G, Bergel E, von Hertzen H. Complications of first-trimester abortion by vacuum aspiration after cervical preparation with and without misoprostol: a multicentre randomised trial. Lancet. 2012;379(9828):1817-1824.