Predictors of HbA1c over 4 years in people with type 2 diabetes starting insulin therapies: The CREDIT study. Balkau, Beverley; Calvi-Gries, Françoise; Freemantle, Nick; Vincent, Maya; Pilorget, Valerie; Home, Philip D.. Diabetes Research and Clinical Practice. 2015; 432-440: p.432-440. doi:10.1016/j.diabres.2015.02.034Article