Differences in hemodynamic, hormonal and heart rate variability parameters in complication-free pregnancies, women with preeclampsia and women with gestational diabetes mellitus: an observational retrospective analysis - Eckstein, ML; Rössler, A; Moertl, M; Jantscher, A; Papousek, I; Wagner, J; Moser, O; Schmid-Zalaudek, K; Sourij, H; Treiber, G; Lackner, H (Diabetologie und Stoffwechsel, 2021)