Phenotypic Variability in a Family with Acrodysostosis Type 2 Caused by a Novel PDE4D Mutation Affecting the Serine Target of Protein Kinase-A Phosphorylation Journal title: Journal of Clinical Research in Pediatric Endocrinology Authors: Julia Hoppmann, Caroline Silve, Chrystel Leroy, Astrid Bertsche, Franz Wolfgang Hirsch, Wieland Kies... Subject(s): Medicine, Internal Medicine, Pediatrics