The quantitative counting of the HbF-cells and the accuracy of the method.
D001772:Blood Cell Count; D004906:Erythrocyte Count; D005260:Female; D006801:Humans; D007275:Injections, Intravenous; D008431:Maternal-Fetal Exchange; D008853:Microscopy; D011247:Pregnancy; D013223:Statistics as Topic