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Willekens FL, Werre JM, Kruijt JK, Roerdinkholder-Stoelwinder B, Groenen-Döpp YA, van den Bos AG, Bosman GJ, van Berkel TJ.Willekens FL, et al. Among authors: werre jm.Blood. 2005 Mar 1;105(5):2141-5. doi: 10.1182/blood-2004-04-1578. Epub 2004 Nov 18.Blood. 2005.PMID: 15550489Free article.