1. Fenske JN, Petersen K. Obsessive-Compulsive Disorder: Diagnosis and Management. *Am Fam Physician*. 2015;92(10):896-903.
2. Stein DJ, Costa DLC, Lochner C, Miguel EC, Reddy YCI, Shavitt RG, et al. Obsessive-compulsive disorder. *Nat Rev Dis Primers*. 2019;5(1):52. doi: 10.1038/s41572-019-0102-3.
3. Calkins AW, Berman NC, Wilhelm S. Recent advances in research on cognition and emotion in OCD: a review. *Curr Psychiatry Rep*. 2013;15(5):357. doi: 10.1007/s11920-013-0357-4.
4. Flaherty G, Chai SY, Hallahan B. To travel is to live: embracing the emerging field of travel psychiatry. *BJPsych Bull*. 2021;45(3):167-70. doi: 10.1192/bjb.2020.32.
5. Fineberg NA, Van Ameringen M, Drummond L, Hollander E, Stein DJ, Geller D, et al. How to manage obsessive-compulsive disorder (OCD) under COVID-19: A clinician’s guide from the International College of Obsessive Compulsive Spectrum Disorders (ICOCS) and the Obsessive-Compulsive and Related Disorders Research Network (OCRN) of the European College of Neuropsychopharmacology. *Compr Psychiatry*. 2020;100:152174. doi: 10.1016/j.comppsych.2020.152174.
6. Shaygani F, Marzaleh MA. The Need to Launch a Postgraduate Program in Health Tourism in Iran. *Iran J Public Health*. 2025;54(2):450-1.
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