Abstract
A response to Jorge Esteves, Carolina Maurente da Rosa, Caroline Kaercher Kramer, Luiz Eduardo Osowski, Stéfano Milano and Luís Henrique Canani: Absence of diabetic retinopathy in a patient who has had diabetes mellitus for 69 years, and inadequate glycemic control: case presentation. Diabetology & Metabolic syndrome 2009, 1:13.