July 2015: Santa Cruz de la Sierra, Bolivia. Collecting data on attitudinal changes related to disability.
July 2013: Santa Cruz de la Sierra, Bolivia. Collecting data on attitudinal changes related to disability.
May 2009: Amhara district, Federal Democratic Republic of Ethiopia (Addis Ababa, Gondar and Kossoye). Interviews with physicians and users concerning use and cultural beliefs about khat (Catha edulis).
November 2003: Baracoa, Cuba. Interviews with physicians concerning allopathic and homeopathic medicine in polyclinics and hospitals.
