DNA alkylation by 4,5-dioxovaleric acid, the final oxidation product of 5-aminolevulinic acid - Douky, T; Onuki, Janice; Medeiros, Marisa Helena Gennari de; Bechara, Etelvino José Henriques; Cadet, Jean; Di Mascio, Paolo (Chemical Research in Toxicology, 1998)