1. American Psychiatric Association (APA) (1980). Diagnostic and statistical manual of mental disorders (3rd ed). Washington, DC: APA.
2. American Psychiatric Association (APA) (1987). Diagnostic and statistical manual of mental disorders (3rd ed., revised). Washington, DC: APA.
3. American Psychiatric Association (APA) (1994). Diagnostic and statistical manual of mental disorders (4th ed.). Washington, DC: APA.
4. American Psychiatric Association (APA) (2000). Diagnostic and statistical manual of mental disorders (4th ed., text revision). Washington, DC: APA.
5. Bornstein, R. F. (1998). Interpersonal dependency and physical illness: A meta-analytic review of retrospective and prospective studies. Journal of Research in Personality, 32, 480–497.