Okamoto, Yoshinori; Hayashi, Tomohiro; Matsunami, Shinpei; Ueda, Koji; Kojima, Nakao (2008). «Combined Activation of Methyl Paraben by Light Irradiation and Esterase Metabolism toward Oxidative DNA Damage». Chemical Research in Toxicology21 (8): 1594-9. PMID18656963. doi:10.1021/tx800066u.
Okamoto, Yoshinori; Hayashi, Tomohiro; Matsunami, Shinpei; Ueda, Koji; Kojima, Nakao (2008). «Combined Activation of Methyl Paraben by Light Irradiation and Esterase Metabolism toward Oxidative DNA Damage». Chemical Research in Toxicology21 (8): 1594-9. PMID18656963. doi:10.1021/tx800066u.