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3. ^{{cite journal | vauthors = Wang Y, Hacker A, Murray-Stewart T, Frydman B, Valasinas A, Fraser AV, Woster PM, Casero RA | title = Properties of recombinant human N1-acetylpolyamine oxidase (hPAO): potential role in determining drug sensitivity | journal = Cancer Chemotherapy and Pharmacology | volume = 56 | issue = 1 | pages = 83–90 | date = July 2005 | pmid = 15791459 | doi = 10.1007/s00280-004-0936-5 }}
4. ^{{cite journal | vauthors = Wu T, Yankovskaya V, McIntire WS | title = Cloning, sequencing, and heterologous expression of the murine peroxisomal flavoprotein, N1-acetylated polyamine oxidase | journal = The Journal of Biological Chemistry | volume = 278 | issue = 23 | pages = 20514–25 | date = June 2003 | pmid = 12660232 | doi = 10.1074/jbc.M302149200 }}