. 2008 Apr 15;1(4):63–69. doi: 10.1097/WOX.0b013e31816c8b85
Copyright ©2008 World Allergy Organization; licensee BioMed Central Ltd.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 1.
Trial design.