Abbreviations:
EFW, estimated fetal weight; BPD, biparietal diameter; HC, head circumference; AC, abdominal circumference; FL, femur length; HL, humerus length; ART, assisted reproductive technology; SC, spontaneously conceived; DCDA, dichorionic diamniotic; MCDA, monochorionic diamniotic; SC-MCDA, spontaneously conceived monochorionic diamniotic; SC-DCDA, spontaneously conceived dichorionic diamniotic; ART-DCDA, assisted reproductive technology dichorionic diamniotic