PLAT and diabetes mellitus: Frequency of hypoglycaemia (modified Steno Hypoglycaemia Questionnaire)Treatment satisfaction (Diabetes Treatment Satisfaction Questionnaire)Markers of endothelial function (t‐PA, sE‐selectin, sICAM‐1)Progression of averaged maximal distal common carotid artery IMT (CCA cIMT, measured in mm, at baseline, 12, 24 and 36 months).Vitamin B12 status