Usefulness of blood and urine samples collected on filter paper in detecting cytomegalovirus by the polymerase chain reaction technique - Yamamoto, Aparecida Yulie; Mussi-Pinhata, Marisa Márcia; Pinto, P. C. G.; Figueiredo, Luiz Tadeu Moraes; Jorge, Salim Moysés (Journal of Virological Methods, 2001)