This work has been partially supported by the Ministerio de Economía y
Competitividad and FEDER under project TEC2014-53196-R, by the
project VA037U16 from Consejería de Educación de la Junta de Castilla y
León, and a grant by the project 153/2015 from Sociedad Española de
Neumología y Cirugía Torácica (SEPAR) and SOCALPAR. F. Vaquerizo-
Villar was in receipt of a ‘Promoción de Empleo Joven e Implantación de la
Garantía Juvenil en I+D+i’ grant from MINECO and the University of
Valladolid and D. Álvarez was in receipt of a Juan de la Cierva grant from
the Ministerio de Economía y Competitividad.
F. Vaquerizo-Villar, G. C. Gutiérrez-Tobal, V. Barroso-García and R.
Hornero, are with the Biomedical Engineering Group, E.T.S.I.
Telecomunicación, Universidad de Valladolid, Paseo de Belén 15, 47011,
Valladolid, Spain (phone: +34 983 423000, ext. 3708) (e-mail:
fernando.vaquerizo@gib.tel.uva.es).
D. Álvarez, F. del Campo and A. Crespo are with the Hospital
Universitario Río Hortega of Valladolid, Spain (e-mail:
fsas@telefonica.net).
L. Kheirandish-Gozal, and D. Gozal, are with the Section of Sleep
Medicine, Dept. of Pediatrics, Pritzker School of Medicine, Biological
Sciences Division, The University of Chicago, Chicago, IL, 60637, USA (email:
dgozal@uchicago.edu).
