L. M. A. de Lima, N. Wiernsperger, L. G. Kraemer-Aguiar, and E. Bouskela, “ Short-term treatment with metformin improves the cardiovascular risk profile in first-degree relatives of subjects with type 2 diabetes mellitus who have a metabolic syndrome and normal glucose tolerance without changes in C-reactive protein or fibrinogen ”, Clinics, vol. 64, no. 5, pp. 415–420, May 2009, doi: 10.1590/S1807-59322009000500008.