Peterson C M, Kalan G, Jovanovic L, Jovanovic R
Am J Obstet Gynecol. 1979 Sep 1;135(1):85-8.
Maternal and cord blood hemoglobin A1c were quantitated at the time of delivery by radioimmunoassay. Other cord blood hemoglobins were quantitated by column chromatography using Bio-Rex 70. The minor hemoglobin ratio : formula: (see text),showed an excellent linear correlation (r2 = 0.88) with gestational age. Therefore, the ratio of : formula: (see text), could be a useful test to determine gestational age in the third trimester.
分娩时通过放射免疫分析法对母体和脐带血血红蛋白A1c进行定量。其他脐带血血红蛋白通过使用Bio-Rex 70的柱色谱法进行定量。次要血红蛋白比率：公式：（见正文），与胎龄呈现出极佳的线性相关性（r2 = 0.88）。因此，公式：（见正文）的比率可能是用于确定孕晚期胎龄的一项有用检测方法。
