External validation of a clinical scoring system for the risk of gestational diabetes mellitus

M. van Leeuwen^*, B. C. Opmeer, E. J.K. Zweers, E. van Ballegooie, H. G. ter Brugge, H. W. de Valk, G. H.A. Visser, B. W.J. Mol

^*Corresponding author for this work