Strong impact of ethnicity on effectiveness of the first trimester maternal serum screen of fetal Down syndrome

• Thitikarn Lerthiranwong, Chanane Wanapirak, Supatra Sirichotiyakul, Fuanglada Tongprasert, Kasemsri Srisupundit, Suchaya Luewan, Theera Tongsong

• The Journal of Maternal-Fetal & Neonatal Medicine, August 2017, Taylor & Francis
• DOI: 10.1080/14767058.2017.1358264