1. Handbook of religion and health;Koenig,2012
2. Five key findings on religion in the US,2016
3. Religiosity highest in world’s poorest nations;Crabtree,2010
4. Spiritual, but not religious;Fuller,2005
5. Religion, spirituality, and health in medically ill hospitalized older patients;Koenig;J Am Geriatr Soc,2004