. 2010 May 19;64(7):669–677. doi: 10.1038/ejcn.2010.65
Copyright © 2010 Macmillan Publishers Limited
This work is licensed under the Creative Commons Attribution-NonCommercial-Share Alike 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/