the case-series of the institute of obstetrics and gynaecology were examined to evaluate the suitability of urinary estriol , total plasma estriol , unconjugated plasma estriol , unconjugated plasma estetrol , plasma placental lactogen , plasma s.p.-1 glycoprotein , plasma alphafetoprotein and biparietal diameter in correctly forecasting the perinatal risk , when performed after the 25th week of pregnancy .
C0014927
unconjugated
C0014899
estetrol