About the Authors

Elisa Docampo

Affiliations Genomics and Disease Group, Centre for Genomic Regulation (CRG), Barcelona, Spain, Universitat Pompeu Fabra (UPF), Barcelona, Spain, Centro de Investigación Biomédica en Red en Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain

Antonio Collado

ACOLLADO@clinic.ub.es

Affiliations Fibromyalgia Unit, Rheumatology Service, Hospital Clínic, Barcelona, Spain, Fibromyalgia and Chronic Fatigue Syndrome, Spanish Genetic and Clinical Data Bank Group, Foundation Fibromyalgia and Fatigue, Barcelona, Spain

Geòrgia Escaramís

Affiliations Genomics and Disease Group, Centre for Genomic Regulation (CRG), Barcelona, Spain, Universitat Pompeu Fabra (UPF), Barcelona, Spain, Centro de Investigación Biomédica en Red en Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain

Jordi Carbonell

Affiliations Fibromyalgia Unit, Rheumatology Service, Parc de Salut Mar; and Hospital del Mar Research Institute, Barcelona, Spain, Fibromyalgia and Chronic Fatigue Syndrome, Spanish Genetic and Clinical Data Bank Group, Foundation Fibromyalgia and Fatigue, Barcelona, Spain

Javier Rivera

Affiliations Rheumatology Unit, Instituto Provincial de Rehabilitación, Hospital Universitario Gregorio Marañón, Madrid, Spain, Fibromyalgia and Chronic Fatigue Syndrome, Spanish Genetic and Clinical Data Bank Group, Foundation Fibromyalgia and Fatigue, Barcelona, Spain

Javier Vidal

Affiliations Rheumatology Unit, Hospital General de Guadalajara, Guadalajara, Spain, Fibromyalgia and Chronic Fatigue Syndrome, Spanish Genetic and Clinical Data Bank Group, Foundation Fibromyalgia and Fatigue, Barcelona, Spain

José Alegre

Affiliations Chronic Fatigue Syndrome Unit, Hospital Vall d’Hebron, Barcelona, Spain, Fibromyalgia and Chronic Fatigue Syndrome, Spanish Genetic and Clinical Data Bank Group, Foundation Fibromyalgia and Fatigue, Barcelona, Spain

Raquel Rabionet

Contributed equally to this work with: Raquel Rabionet, Xavier Estivill

Affiliations Genomics and Disease Group, Centre for Genomic Regulation (CRG), Barcelona, Spain, Universitat Pompeu Fabra (UPF), Barcelona, Spain, Centro de Investigación Biomédica en Red en Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain

Xavier Estivill

Contributed equally to this work with: Raquel Rabionet, Xavier Estivill

Affiliations Genomics and Disease Group, Centre for Genomic Regulation (CRG), Barcelona, Spain, Universitat Pompeu Fabra (UPF), Barcelona, Spain, Centro de Investigación Biomédica en Red en Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ED AC GE RR XE. Performed the experiments: ED AC GE RR. Analyzed the data: ED AC GE. Contributed reagents/materials/analysis tools: AC GE. Wrote the paper: ED AC GE JC JV JR JA RR XE. Samples collection: AC JC JR JV JA. Critical evauation results: ED AC JC JR JV JA GE RR XE.