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Pilot study on HTR2A promoter polymorphism, −1438G/A (rs6311) and a nearby copy number variation showed association with onset and severity in early onset obsessive–compulsive disorder

Psychiatric DiseasePsychiatryObsessive-compulsive DisorderPsychiatric GeneticsPsychologySocial SciencesMood DisordersPsychiatric DisorderMedicineHtr2a Promoter PolymorphismPsychopathologyPilot Study