in patients whose fetuses were suspected of being intrauterine growth retarded , a dhea to estrogen conversion rate constant less than or equal to 3.0 x 10 ( -3 ) min ( -1 ) was associated with a birth weight below the tenth percentile in 60 % of the pregnancies , whereas a conversion rate constant above this threshold was not associated with the same degree of growth retardation .
C0011185
estrogen
C0032961
pregnancies