1 University of Las Palmas de Gran Canaria, University Institute of Investigation on Biomedical Sciences (IUIBMS), Las Palmas de Gran Canaria, Canary Islands, Spain. manuel.sosa@ulpgc.es.
2 Bone Metabolic Unit, Hospital University Insular, Las Palmas de Gran Canaria, Canary Islands, Spain. manuel.sosa@ulpgc.es.