1 Primary Health Care Research Unit, Balearic Public Health Service (Ib-Salut), Palma, Illes Balears, Spain; Health Research Institute of the Balearic Islands (IdISBa), Palma, Illes Balears, Spain; Faculty of Medicine, University of the Balearic Islands, Palma, Spain. Electronic address: plorentem@gmail.com.
2 Paediatric Service, University Hospital Son Llàtzer, Balearic Public Health Service, Palma, Illes Balears, Spain; Directorate of General Health Service, Balearic Public Health Service (Ib-Salut), Palma, Illes Balears, Spain.
3 Directorate of General Health Service, Balearic Public Health Service (Ib-Salut), Palma, Illes Balears, Spain.
4 Health Research Institute of the Balearic Islands (IdISBa), Palma, Illes Balears, Spain.