Pitimana-aree, S., Mahathanaviroj, O., & Sujirattanawimol, K. (1995). Oxygenation, Ventilation and Hemodynamic Changes during Diagnostic Pelvic Laparoscopy in Siriraj Hospital . Thai Journal of Obstetrics and Gynaecology, 7(2), 135–141. retrieved from https://he02.tci-thaijo.org/index.php/tjog/article/view/257757