7Sergio Luiz De Moura,Trudy Harpham,Michal Lyons.The social distribution of explanation of health and illness among adolescents in Sao Paulo,Brazil J Adolescence,2003,26:459-473.
8Vaillant GE,DiRago AC,Mukamal KM.Natural history of male psychological health,XV:Retirement satisfaction.Am J Psychiawy,2006,163:682-688.