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170 Science Research Writing In Sentence 1 'Prior work has documented the eff ectiveness of psychosocial intervention in improving quality of life (QoL) and reducing stress in patients suff ering from various disorders; Epstein,18 for example, reports that orthopedic patients participating in a two- week multimedia intervention programme improved across several QoL indices, including interpersonal confl ict and mental health.' the writer revisits previous research.