The above letter was sent to Walsh et al.: Drs Walsh, Sandhaus, and Trapnell offered the following reply

Source: Transfusion, Volume 46, Number 5, May 2006 , pp. 874-874(1)

Publisher: Wiley-Blackwell

Document Type: Research article

DOI: http://dx.doi.org/10.1111/j.1537-2995.2006.00810.x

Publication date: 2006-05-01

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• In this Subject: Internal Medicine

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