Sulfonylurea Inadequacy Efficacy of addition of insulin over 6 years in patients with type 2 diabetes in the U.K. Prospective Diabetes Study (UKPDS 57) - Felix Burden, A.C.; Wright, Alex; A. Cull, Carole; B. Paisey, Richard; R. Holman, Rury (Przewodnik Lekarza/Guide for GPs, 2002)