Patterns of hepatitis A infection by Brazilian regions: Results of the national household survey 2004–2009 by Ximenes, R, Martelli, C.T, Merchan-Hamman, E, Montarroyos, U, Braga, C, Moreira, R, Figueiredo, G.M, Cardoso, M.R, Turchi, M, Coral, G, Stein, A, Lima, M.L, Costa, M, Arraes-Alencar, L.C, Crespo, D, Santos, A. Santos dos, Pereira, L

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