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  1. 10 Rarest Mental Illnesses in the World

  2. 10 Rare Mental Health Conditions - CSP Global

  3. Top 20 Weirdest and Rarest Mental Illnesses You Won’t Believe …

  4. 15 Types of Mental Illnesses We Don't Talk About - The Mighty

  5. 11 Rare Mental Disorders You Probably Never Heard About

  6. Rare Mental Disorders: What You Need to Know - MedCircle

  7. Five rare and unusual psychiatric syndromes – including one …

  8. Rare and Unusual Neuropsychiatric and Psychiatric Syndromes

  9. Rare and Unusual Psychiatric Syndromes: A Primer - Medscape

  10. Three Rare Psychotic Syndromes - Psychology Today