Routine ultrasound is the method of choice for dating pregnancy

[1]  B. Backe,et al.  Routine ultrasound dating has not been shown to be more accurate than the calendar method , 1998, British journal of obstetrics and gynaecology.

[2]  J. Gardosi,et al.  Routine ultrasound is the method of choice for dating pregnancy , 1998, British journal of obstetrics and gynaecology.