1Department of Pediatrics, University of California Davis School of Medicine, Sacramento, CA, USA
2Dipartimento Scienze della Vita e Sanità Pubblica, Sezione di Biologia Applicata, Università Cattolica del Sacro Cuore, Rome, Italy
3Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
4Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
5Mc-Kusick-Nathans Institute of Genetic Medicine, Johns Hopkins, Baltimore, MD, USA
6Genometrics Section, Computational and Statistical Genomics Branch, Division of Intramural Research, NHGRI, NIH, Baltimore, MD, USA
7Department of Orthopaedics, Emory University School of Medicine, Atlanta, GA, USA
8Department of Biological Sciences, College of Veterinary Medicine, Iowa State University, IA, USA