serial estimations of maternal urinary oestriol , serum cystine aminopeptidase ( s-cap ) , and human chorionic somatomammotrophin ( s-hcs ) were done in a prospective study on 29 pregnancies in which intrauterine growth retardation was diagnosed in the third trimester by the gravidogram method and/or serial ultrasound measurements of the fetal biparietal diameter .
C0032961
pregnancies
C0032981
third trimester