Affiliation: | 1. Prenatal Diagnosis Unit, Institute of Gynecology, Obstetrics and Neonatology, Hospital Clinic, University of Barcelona Medical School, Barcelona, Catalonia, Spain;2. Department of Biochemistry, Biomedical Diagnosis Center, University of Barcelona Medical School, Barcelona, Catalonia, Spain;3. Prenatal Diagnosis Unit, Institute of Gynecology, Obstetrics and Neonatology, Hospital Clinic, University of Barcelona Medical School, Barcelona, Catalonia, Spain Genetics Service, Biomedical Diagnosis Center, Hospital Clinic, University of Barcelona Medical School, Barcelona, Catalonia, Spain;4. Genetics Service, Biomedical Diagnosis Center, Hospital Clinic, University of Barcelona Medical School, Barcelona, Catalonia, Spain |