Violence (2) Social sciences (2) Research (2) Psychology (2) Dueling (2) Children (2) Aging (2) Factores (2) Estudio (2) Envejecimiento (2) Duelos (2) Ciencias sociales (2) Niños (2) Investigación (2) Psicología (2) spectacle (1) analyse (1) survie (1) Mexique (1) Labor (1) Futures (1) Teenagers (1) Visions (1) Vision (1) Survival (1) Sociology (1) Social service (1) Regression analysis (1) Professional employees (1) Process (Law) (1)