1 Internal Medicine Department, Vila Nova de Gaia/Espinho Hospital Centre, Vila Nova de Gaia, Portugal. Electronic address: joanarigor@gmail.com.
2 Internal Medicine Department, Vila Nova de Gaia/Espinho Hospital Centre, Vila Nova de Gaia, Portugal; Diabetic Foot Clinic; Endocrinology, Diabetes and Metabolism Department and Internal Medicine Department, Vila Nova de Gaia/Espinho Hospital Centre, Vila Nova de Gaia, Portugal; Department of Biomedicine, Faculty of Medicine of the University of Porto, Porto, Portugal; i3S, Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal.
3 MEDCIDS - Department of Community Medicine, Information and Health Decision Sciences, Faculty of Medicine of the University of Porto, Porto, Portugal; CINTESIS - Center for Health Technology and Services Research, Faculty of Medicine of the University of Porto, Porto, Portugal.