B Trudinger

The fetal cardiac isovolumetric contraction time in normal pregnancy and in pregnancy with placental vascular disease: the first clinical report using a new ultrasound technique

N Athayde, T Koga, B Trudinger, 2001, BJOG : an international journal of obstetrics and gynaecology.

A new and simple Doppler method for measurement of fetal cardiac isovolumetric contraction time

N Athayde, T Koga, B Trudinger, 2001, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Practice Guidelines

F Prefumo, K. Kalache, C. Lees, 2013 .