Longitudinal changes of cardiotocographic parameters throughout pregnancy: a prospective cohort study comparing small-for-gestational-age and normal fetuses from 24 to 40 weeks.
Amorim-Costa C, Gaio AR, Ayres-de-Campos D, Bernardes J.
J Perinat Med. 2017 May 24;45(4):493-501. doi: 10.1515/jpm-2016-0065.