The American Anthropological Association’s Medical Anthropology section has a site with useful definitions, links to blogs and resources: http://www.medanthro.net/feature/what-is-medical-anthropology/

Practical advice on how to conduct ‘go-along’ interviews from Andrew Clark and Nick Emmel can be found here in their report ‘Using walking interviews’: http://eprints.ncrm.ac.uk/1323/1/13-toolkit-walking-interviews.pdf