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Johnson FR, Hauber AB, Osoba D, Hsu MA, Coombs J, Copley-Merriman C.Johnson FR, et al.Qual Life Res. 2006 Mar;15(2):285-98. doi: 10.1007/s11136-005-0581-4.Qual Life Res. 2006.PMID: 16468083
Copley-Merriman C, Yang X, Juniper M, Amin S, Yoo HK, Sen SS.Copley-Merriman C, et al.Adolesc Health Med Ther. 2021 May 19;12:55-66. doi: 10.2147/AHMT.S303456. eCollection 2021.Adolesc Health Med Ther. 2021.PMID: 34040477Free PMC article.Review.