1. Akiyama, K. (2004).Práticas Não-Convencionais em Medicina no Municipio de São Paulo(PhD thesis). Department of Preventive Medicine, Faculty of Medicine, University of São Paulo, São Paulo, Brazil.
2. Baer, H. (2001).Biomedicine and alternative healing systems in America: Issues of class, race, ethnicity and gender. Madison, WI: University of Wisconsin Press.
3. Baer, H. (2004).Toward an integrative medicine: Merging alternative therapies with biomedicine. Walnut Creek, CA: AltaMira Press.
4. Barros, P. P. & Simões, J. A. (2007). Portugal health system review. In S. Allin, & E. Mossialos, (Eds.),Health systems in transition. World Health Organization on behalf of the European Observatory on Health Systems and Policies. Retrieved from http://www.portal-dasaude.pt/NR/rdonlyres/D5848EE0-7C39-4836-9235-DCD39DB8E9D8/0/HiTPortugal2007.pdf
5. Cabral, M. V., Silva, P. A. & Mendes, H. (2002).Saúde e Doença em Portugal – Inquérito aos Comportamentos e Atitudes da População Portuguesa Perante o Sistema Nacional de Saúde. Lisboa, Portugal: ICS.