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by Pearson; Ruth
by Lemire, Beverly; Pearson, Ruth; Campbell, Gail
by Jenkins, Rhys; Pearson, Ruth; Seyfang, Gill
by Pearson, Ruth; Kusakabe, Kyoko
by Pearson, Ruth; Sweetman, Caroline
by Westheimer, Dr. Ruth K.; Lehu, Pierre A.; Pearson, Tracey Campbell
by Pearson, Ruth