In the article on pages 38-45 in the January/February 2011 issue, by Young Hee Sung & Kyung Hee Park, the 2nd sentence in the 3rd paragraph of the right column of the page of 38, "The incidence of PU was 0.44% to 0.49% for inpatients in an acute care hospital. . ." should be replaced with "The incidence density of PU was 0.44 to 0.49 cases per 1000 patient days for inpatients in an acute care hospital. . ."

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