Institution: | (1) Institut Pasteur, Centre de Microscopie Electronique et de Pathologie Ultrastructurale, 77, rue Pasteur, F-69365 Lyon Cédex 2, (France);(2) Present address: Laboratorio Central Gonçalo Moniz, 121 Rua Waldemar Falcao Brotas, 40 000 Salvador, Bahia, Brazil;(3) Present address: Endemic Medical Department, Cairo University, Faculty of Medicine, Cairo, (Egypt) |