"That's Nursing!!" (Editorial, July) includes a reference to the study by McCue and colleagues. The sentences describing its findings should have read (changes in italics): "The analysis of data culled from 422 hospitals in 11 states between 1990 and 1995 showed that for every 1% increase in RN staff, operating costs increased by 0.25%-but there was no decrease in profits. Furthermore, for every 1% increase in non-RN staff, operating costs increased by 0.18% but profits decreased by 0.21%." We regret the error.

"Crisis in Darfur, Sudan" (Correspondence from Abroad, July) incorrectly listed the Web site for the International Rescue Committee as http://www.theirc.com. It should have been http://www.theirc.org.