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Piira T, Taplin JE, Goodenough B, von Baeyer CL.Piira T, et al.Behav Res Ther. 2002 May;40(5):571-84. doi: 10.1016/s0005-7967(01)00073-0.Behav Res Ther. 2002.PMID: 12038649
Piira T, Hayes B, Goodenough B, von Baeyer CL.Piira T, et al.Behav Res Ther. 2006 Jun;44(6):835-48. doi: 10.1016/j.brat.2005.03.013. Epub 2005 Aug 15.Behav Res Ther. 2006.PMID: 16099421Clinical Trial.
Piira T, Sugiura T, Champion GD, Donnelly N, Cole AS.Piira T, et al.Child Care Health Dev. 2005 Mar;31(2):233-43. doi: 10.1111/j.1365-2214.2004.00466.x.Child Care Health Dev. 2005.PMID: 15715702Review.