Kovavisarach, Ekachai. “Gaskin Maneuver “all fours” for Coping the Obstetric Nightmare ‘shoulder dystocia’”. Thai Journal of Obstetrics and Gynaecology 19, no. 2 (April 30, 2011): 35–36. accessed September 28, 2026. https://he02.tci-thaijo.org/index.php/tjog/article/view/1247.