. 2004 Jun 29;2:10. doi: 10.1186/1478-4491-2-10
Copyright © 2004 Wibulpolprasert et al; licensee BioMed Central Ltd. This is an Open Access article: verbatim copying and redistribution of this article are permitted in all media for any purpose, provided this notice is preserved along with the article's original URL.
Figure 1.
Mode of international trade in services [8]