first-trimester, prediction, prevention, aspirin, screening, triple-test, competing risk model, preeclampsia, great obstetrical syndromes, pregnancy complications, efficacy, safety, acceptability, feasibility, mean arterial pressure, uterine artery pulsati
Alpha-Thalassemia, Anemia, Fetus, Hemoglobin H Disease, Hemoglobin H Constant Spring Disease, Intrauterine Treatment, Ultrasound