Puisungnoen, Nukun, Waralak Yamasmit, and Sumonmal Manusirivithaya. 2015. “Gestational Diabetes: Use of Glucose Challenge Test as a Diagnostic Test”. Thai Journal of Obstetrics and Gynaecology 23 (2). Bangkok, Thailand:82-88. https://doi.org/10.14456/tjog.2015.18.