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The first author's name was misspelled. The correct name is: Jia-Qian Jiang. The correct citation is: Jiang J-Q, Zhou Z (2013) Removal of Pharmaceutical Residues by Ferrate(VI). PLoS ONE 8(2): e55729. doi:10.1371/journal.pone.0055729
Competing Interests: No competing interests declared.
