Macrosomia and Hyperinsulinaemic Hypoglycaemia in Patients with Heterozygous Mutations in the HNF4A Gene Ewan R. Pearson1,2[, Sylvia F. Boj3,4[, Anna M. Steele1[, Timothy Barrett5, Karen Stals1, Julian P. Shield6,7, Sian Ellard1, Jorge Ferrer3,4, Andrew T. Hattersley1* 1 Peninsula Medical School, Exeter, United Kingdom, 2 Division of Medicine and Therapeutics, Ninewells Hospital and Medical ....