1. Research Unit, Hospital Universitario N.S. de Candelaria, Universidad de La Laguna, Santa Cruz de Tenerife, Spain
2. Instituto Tecnológico y de Energías Renovables (ITER), Genomics Division, Santa Cruz de Tenerife, Spain
3. CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain
4. Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country UPV/EHU, Leioa, Bizkaia, Spain