Phromboot, T., Chittacharoen, A. and Pitakkijronnakorn, S. (2012) “Efficacy of intraumbilical vein Methylergonovine maleate on duration of third stage of labor”, Thai Journal of Obstetrics and Gynaecology. Bangkok, Thailand, 20(1), pp. 29–33. available at: https://he02.tci-thaijo.org/index.php/tjog/article/view/1153 (accessed: 29 September 2026).