Rao C V, Willcourt R, Queenan J T
Am J Obstet Gynecol. 1980 Jul 1;137(5):543-6. doi: 10.1016/0002-9378(80)90693-6.
Analysis of 94 samples of blood collected from five pregnant diabetic patients in the third trimester revealed that there were no significant variations in plasma unconjugated estriol levels. Therefore, single random samples of blood collected at the same time every day are adequate for unconjugated estriol measurements.
对从5名妊娠晚期糖尿病患者采集的94份血样进行分析后发现,血浆中未结合雌三醇水平无显著差异。因此,每天同一时间采集的单次随机血样足以用于未结合雌三醇的检测。