secteur des services (1) recherche (1) analyse (1) santé (1) survie (1) Afrique (1) Observations (1) Interviews (1) Observations (1) Survival (1) Streets (1) South Africa (1) Research (1) Mental illness (1) Interviews (1) Homelessness (1) Homeless persons (1) Health (1) Interviews (1) Research (1) Analysis (1) Health (1)