Fleming A, Olson JA, Sharp PF, Goatman KA, Philip S. Response to 'Improved automated screening of diabetic retinopathy' by Carlos M. Oliveira et al. Ophthalmologica. 2012 Jan 1;227(3):173. doi: 10.1159/000334922
Davis KL, Mitra D, Medjedovic J, Beam C, Rustgi V. Direct economic burden of chronic hepatitis c virus in a United States managed care population. J Clin Gastroenterol. 2011 Feb 1;45(2):e17-24.