Global accelerated action for the health of adolescents (AA-HA!): guidance to support country implementation Summary 6 October 2017 | Publication Download (3.2 MB) Overview Other languages:ArabicChinese WHO Team Maternal, Newborn, Child and Adolescent Health, and Ageing Editors WHO Number of pages 44 Reference numbers WHO Reference Number: WHO/FWC/MCA/17.05 Copyright CC BY-NC-SA 3.0 IGO