Reference centiles for fetal thymus transverse diameter at 18-25 weeks of gestation: a cross-sectional ultrasound study
Aims: To establish gestational age-specific reference centiles for fetal thymus transverse diameter between 18 and 25 weeks of gestation, corresponding to the routine mid-trimester anatomical survey.Methods: This retrospective cross-sectional study included singleton pregnancies that underwent detailed second-trimester...