The length of human pregnancy as calculated by ultrasonographic measurement of the fetal biparietal diameter

@article{Kieler1995TheLO,
  title={The length of human pregnancy as calculated by ultrasonographic measurement of the fetal biparietal diameter},
  author={H. Kieler and O. Axelsson and S. Nilsson and U. Waldenstr{\"o}},
  journal={Ultrasound in Obstetrics and Gynecology},
  year={1995},
  volume={6}
}
Pregnancy length was calculated from ultrasonic measurement of the fetal biparietal diameter (BPD) in the second trimester and compared with the corresponding length calculated from the last menstrual period (LMP) in 86.5 women with exactly 28‐day cycles and spontaneous onset of labor. The effects of maternal age, parity, smoking and sex of the child on BPD‐based pregnancy length were evaluated in 1998 women with spontaneous onset of labor. The mean pregnancy length was 280.6 days when based on… Expand
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