Weber T, Hahn-Pedersen S, Bock J E
Br J Obstet Gynaecol. 1978 Oct;85(10):770-2. doi: 10.1111/j.1471-0528.1978.tb15600.x.
We made continuous fetal pH-measurement in 50 patients and showed a good correlation between tissue pH and umbilical artery, umbilical vein and the fetal scalp blood pH. There were practical problems in the use of the glass pH electrode.