erc: who: Twemlow, Stuart W. what: Clinical Approaches to the Out-of-Body Experience when: 1989 where: https://digital.library.unt.edu/ark:/67531/metadc798989/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://digital.library.unt.edu/ark:/67531/