@inproceedings{inproceedings2624e77c, title = {Placental transfer of igg and igg subclasses anti-escherichia coli purified lps antigens}, author = {Martinez, C C and Nagao, A T and Takano, O A and Vieira, V S and Carneiro-Sampaio, M. M. S.}, year = {1996}, publisher = {ICB-USP}, booktitle = {Congresso do Instituto de Ciencias Biomedicas da Universidade de São Paulo} }