Quality of care of people with type 2 diabetes in eight European countries: findings from the Guideline Adherence to Enhance Care (GUIDANCE) study., Stone, M.A., Charpentier G., Doggen Kris, Kuss O., Lindblad U., Kellner C., Nolan J., Pazderska A., Rutten G., Trento M., et al. , Diabetes Care, 0/9/2013, Volume 39, Issue 9, Number 2638, p.2628 - 2638, (2013)