@article{article18372cdb,
title   = {Detection of antibodies against hepatitis A virus in evaluated of blood spotted on filter-paper: a pilot study in Rio de Janeiro, Brazil},
author = {Almeida, L. M. and Azevedo, R. S. and Guimaraes, A. A. M. and Coutinho, E. S. F. and Struchiner, C. J. and Massad, Eduardo},
year = {1999},
doi = {10.1016/s0035-9203(99)90133-5},
journal   = {Transactions of the Royal Society of Tropical Medicine and Hygiene}
}