1. CIDES/CINTESIS - Health Information and Decision Sciences Department (U753-FCT); Oporto University Faculty of Medicine; Oporto Portugal
2. Internal Medicine Department; Centro Hospitalar de Vila Nova de Gaia/Espinho EPE; Vila Nova de Gaia Portugal
3. Diabetic Foot Clinic, Endocrinology, Diabetes and Metabolism Department; Centro Hospitalar de Vila Nova de Gaia/Espinho EPE; Vila Nova de Gaia Portugal
4. Department of Biochemistry (U38-FCT); Oporto University Faculty of Medicine; Oporto Portugal
5. Centre for Evidence-Based Medicine Faculty of Medicine; University of Lisbon; Lisbon Portugal
6. Portuguese Collaborating Center of the Iberoamerican Cochrane Network; Lisbon Portugal
7. Vascular Surgery Department; Oporto University Faculty of Medicine; Oporto Portugal