Media type: E-Article Title: Twinship—An Appreciative Discussion Contributor: Lichtenberg, Joseph D. imprint: Informa UK Limited, 2012 Published in: International Journal of Psychoanalytic Self Psychology Language: English DOI: 10.1080/15551024.2012.686156 ISSN: 1940-9141; 1555-1024 Keywords: Psychiatry and Mental health ; Clinical Psychology Origination: Footnote: