Christian Canestro Seminario

Medicine, University Medical Center Utrecht, Utrecht, the Netherlands 5 Department.. of Genetics, University of Groningen, University Medical

Correspondence: Roberta Migliavacca, Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, Unit of Microbiology and Clinical Microbiology, University of Pavia,

1 Department of Molecular Neuroscience, University College London, London WC1N 3BG, UK; 2 Developmental Genetics Unit, Department of Genetics, King Faisal Specialist Hospital

Amoretti, Silvia, PhD Barcelona Clinic Schizophrenia Unit, Neuroscience Institute, Hospital Clinic of Barcelona, Barcelona, Spain, CIBERSAM, Spain; Andreu-Bernabeu, Álvaro,

Biomedical Research Networking Center of Epidemiology and Public Health, Granada, Spain, 10 Occupational Health Department, Parc de Salut MAR, Barcelona, Spain, 11 Epidemiology

Department of Computer Science, University of Pisa, Italy [email protected]. Barcelona Graduate School

L’Hospitalet de Llobregat, Barcelona, Spain (AA, XC); CIBER Epidemiología y Salud Pública, Spain (XC); School of Medicine and Dentistry, University of Aberdeen, Aberdeen, UK

Department of Economics and Statistics, University of Torino; e-mail: [email protected] Bernardo Nipoti.. Department of Economics and Statistics, University of Torino;