Patcharaporn Chalopagorn และ Saknan Manotaya. (2019) Knowledge and Attitude of Pregnant Women Undergoing Cell-free DNA Screening at the King Chulalongkorn Memorial Hospital. <i>Thai Journal of Obstetrics and Gynaecology</i>, <i>27</i>(3), 156-164.Patcharaporn Chalopagorn และ Saknan Manotaya. "Knowledge and Attitude of Pregnant Women Undergoing Cell-free DNA Screening at the King Chulalongkorn Memorial Hospital". Thai Journal of Obstetrics and Gynaecology 27 (2019):156-164.Patcharaporn Chalopagorn และ Saknan Manotaya. Knowledge and Attitude of Pregnant Women Undergoing Cell-free DNA Screening at the King Chulalongkorn Memorial Hospital. PIMDEE Co. Ltd.:ม.ป.ท. 2019.