1. Agar, M. (1980) The professional stranger: an informal introduction to ethnography, Academic Press, New York
2. Andrews, G. J., Cutchin, M., McCracken, K., Phillips, D. R. and Wiles, J. (2007) Geographical gerontology: the constitution of a discipline, Social Science and Medicine, 65 (1), 151–168
3. Aviles, N. R., Barnard, M., Rhodes, T. et al (2000) Qualitative research on the health risks associated with drug injecting: needle and syringe sharing, In EMCDDA (ed) Understanding and responding to drug use: the role of Qualitative Research, Scientific monograph series, No. 4, Luxembourg
4. Bourgois, P., Lettiere, M. and Quesada, J. (2003) Social misery and the sanctions of substance abuse: confronting HIV risk among homeless heroin addicts in San Francisco, In J. D. Orcutt and D. R. Rudi (eds) Drugs, alcohol and social problems, Rowman & Littlefield Publishers, New York, pp. 257–278
5. Brown, T. and Duncan, C. (2002) Placing geographies of public health, Area, 34 (4), 361–369