- Open Access
Nielsen theory and related topics
© Philip R. Heath et al. 2006
- Received: 14 July 2005
- Accepted: 14 July 2005
- Published: 29 March 2006
Download the PDF to read the full article.
This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.