“…1975].The well-known finding of a decreased urinary oestriol excretion in this pathological condi tion is therefore hardly surprising [Frandsen et al, 1970;Jorgensen and Frandsen. 1971;Michie, 1967;Roy et al, 1963;Unnérus, 1979], In contrast to urinary oestriol measure ments, the results from oestriol determina tions in peripheral serum/plasma in pre eclamptic patients are more ambiguous. Most authors report decreased peripheral levels of total oestriol (tE3) in pre-eclampsia; however, no differences or even increased levels have also been reported [Alexander et al, 1979;Dubin et al, 1973;Fischer-Ras mussen, 1972;Mathurex al., 1973;RoyeX al., 1963].…”