Hart J, McClure G M
Department of Child Psychiatry, Westminster Children's Hospital, Vincent Square, London.
Br J Psychiatry. 1989 Apr;154:552-4. doi: 10.1192/bjp.154.4.552.
A mother and her son shared delusional beliefs that doubles of themselves existed and that they were being harassed by the police and social and educational services. The nature of these 'double double' symptoms is discussed.