Gestational Diabetes Mellitus: A Syndrome with Phenotypic and Genotypic Heterogeneity - Freinkel, N; Metzger, B E; Phelps, R L; Simpson, J L; Martin, Alice O; Radvany, Ruta; Ober, Carole; Dooley, Sharon L; Depp, R O; Belton, A (Hormone and Metabolic Research, 1986)