Affiliation: | 1.Research Institute of Biomedical and Health Sciences, University of Las Palmas de Gran Canaria, Paseo Blas Cabrera Felipe “Físico” (s/n), 35016, Las Palmas, Canary Islands, Spain ;2.Department of Mathematics, University of Las Palmas de Gran Canaria, Campus de Tafira, 35017, Las Palmas, Canary Islands, Spain ; |