Chirasathaporn , S., & Ruangchainikom, W. (2001). Genetic Amniocentesis for Prenatal Diagnosis at Bhumibol Adulyadej Hospital: Four years experience. Thai Journal of Obstetrics and Gynaecology, 13(3), 79–83. retrieved from https://he02.tci-thaijo.org/index.php/tjog/article/view/256561