1. Evaluating an Interpersonal Model of Depression among adults with Down syndrome;Ailey;Research and Theory for Nursing Practice,2006
2. Patterns of attachment: A psychological study of the strange situation;Ainsworth,1978
3. Diagnostic and Statistical Manual of Mental Disorders Text Revision (DSM-IV-TR);American Psychiatric Association,2000
4. MRI volumes of the hippocampus and amygdala in adults with Down's syndrome with and without dementia;Aylward;American Journal of Psychiatry,1999
5. Attachment and loss. Vol. I. Attachment;Bowlby,1971