Delusional disorder, once termed paranoia, was an important diagnosis in the late-19th and early-20th centuries, and only in 1987 was it reintroduced into moder... » 

Delusional disorder, once termed paranoia, was an important diagnosis in the late-19th and early-20th centuries, and only in 1987 was it reintroduced into modern psychiatric diagnosis after being subsumed with schizophrenia. This is a comprehensive review for psychiatrists and other clinicians. «