The Bernese gestational diabetes (GDM) project: Does pre-pregnancy BMI and weight gain in the first half of the pregnancy influence the development of GDM? - Amylidi-Mohr, S; Mosimann, B; Kaderli, N; Stettler, C; Surbek, D; Raio, L (Geburtshilfe und Frauenheilkunde, 2018)