1 Department of Medicine and Life Sciences, Universitat Pompeu Fabra, Parc de recerca Biomèdica de Barcelona, Barcelona, Spain.
2 Department of Otolaryngology, Head and Neck Surgery, Stanford University School of Medicine, Stanford, CA, United States.
3 Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, United States.
4 Institute for Biomedical Research "Alberto Sols" (IIBm), Spanish National Research Council-Autonomous University of Madrid (CSIC-UAM), Madrid, Spain.
5 Rare Diseases Networking Biomedical Research Centre (CIBERER), CIBER, Carlos III Institute of Health, Madrid, Spain.
6 La Paz Hospital Institute for Health Research (IdiPAZ), Madrid, Spain.