Claire Holderness, MD

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Dr Holderness is an associate clinical professor of psychiatry at the Columbia University Vagelos College of Physicians and Surgeons, New York State Psychiatric Institute.

Articles

Comorbidity of Anorexia Nervosa and Schizophrenia: A Case Study and Review of the Literature

Claire E. Koljack, MD;Claire Holderness, MD

October 25th 2023

Anorexia nervosa may be underdiagnosed in patients with schizophrenia due to difficulty in distinguishing the two comorbid conditions.

Improving Outcomes in Late-Life Schizophrenia

Nery A. Diaz, DO, FAPA;Laura Clarke, MD, DFAPA;Claire Holderness, MD

December 8th 2021

What treatment strategies are available to improve the quality of life for older adults who are aging with schizophrenia?

Latest Updated Articles

Published: April 1st 2019 | Updated: October 3rd 2025

Mini Quiz: Assessment of Malingering

Published: March 19th 2021 | Updated: October 3rd 2025

Mini Quiz: Treatment for Pedophilia?

Published: March 23rd 2021 | Updated: October 3rd 2025

Poor DSM-5—So Misunderstood!

Published: June 6th 2018 | Updated: October 3rd 2025

Mini Quiz: Psychogenic Non-Epileptic Seizures

Published: September 23rd 2025 | Updated: October 3rd 2025

New Positive Phase 2 Data on Osavampator for Major Depressive Disorder

Published: September 26th 2025 | Updated: October 3rd 2025

On the Last 40 Years in Psychiatry with Correctional Psychiatrist, Dionne Hart, MD

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