Nursing / Traumatology / Violence / Urbanization / Emergency Medical Services / South Africa / Pregnancy / Humans / Child / Substance Abuse / Injury / Accidents / Alcoholism / Female / Male / Clinical Sciences / Newborn Infant / Public health systems and services research / Wounds and Injuries / Child preschool / South Africa / Pregnancy / Humans / Child / Substance Abuse / Injury / Accidents / Alcoholism / Female / Male / Clinical Sciences / Newborn Infant / Public health systems and services research / Wounds and Injuries / Child preschool