@inproceedings{inproceedings5ba4000e, title = {Protective effect of spermine and spermidine on plasmid single-strand breaks induced by singlet oxygen}, author = {Di Mascio, Paolo and Medeiros, Marisa Helena Gennari de and Kham, A U and Wilson, T}, year = {1993}, publisher = {Sbbq}, booktitle = {Reuniao Anual da Sociedade Brasileira de Bioquimica e Biologia Molecular} }