in order to identify possible aetiological factors in the genesis of physiological hydronephrosis in pregnancy , the degree of pelvic-calyceal dilatation in 90 asymptomatic pregnant women was correlated with levels of plasma oestradiol , progesterone , 24-hour urinary oestriol , the site of the placenta , birthweight of the fetus , and pelvic inlet measurements .
C0032961
pregnancy
C0033308
progesterone