1. Sublingual nitroglycerin for management of retained placenta;Bullarbo;International Journal of Gynecology & Obstetrics,2005
2. Nitroglycerin for the management of retained placenta: a multicenter study;Bularbo;Obstetrics and Gynecology International,2012
3. Bullarbo M Medical treatment with nitroglycerin for management of retained placenta: a multicentre trial http://www.controlled-trials.com/ISRCTN34755982 [accessed 11.05.2012] 2008
4. Intravenous nitroglycerin for controlled cord traction in the management of retained placenta;Visalyaputra;International Journal of Gynecology & Obstetrics,2011
5. Sublingual versus intravenous nitroglycerin for management of retained placenta;Farrag;Benha Medical Journal,2009