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Chung KF, Yeung WF, Yu YM, Ho FY.Chung KF, et al. Among authors: yu ym.Psychol Health Med. 2018 Jun;23(5):505-510. doi: 10.1080/13548506.2017.1363397. Epub 2017 Aug 8.Psychol Health Med. 2018.PMID: 28786296