1
artículo
Publicado 1999
Enlace

This study was funded in part by the National Institutes of Health (grant no. U01-A135894, awarded to The Johns Hopkins University), the RG-ER Fund, and Consejo Nacional de Ciencia y Tecnologı´a (CONCYTEC; Lima, Peru).
2
artículo
Publicado 2005
Enlace

Financial support for this study was received from Consejo Nacional de Ciencia y Tecnología (CONCYTEC), Lima, Peru. The methods used in the present study comply with current Peruvian law governing the participation of human subjects in biomedical research.