Santos, Isabel Cristina Ramos Vieira, Ana Carla Florentino de Barros e Silva, Andréia Paula da Silva, and Larisse Calou Pinheiro de Melo. 2008. “Preventive Care Offered by Primary Care and Amputation of Lower Limbs in Patient With Diabetic Foot”. Rev Rene 9 (4). http://www.periodicos.ufc.br/rene/article/view/5106.