Dysregulation of Serum Serotonin– Melatonin Biosynthetic Pathway Markers in Patients with ObsessiveCompulsive Disorder: A Case-Control Study. - Al-Zubaidy, Alaa Abdulwadood Ahmed; Mohammed, Musa Jassim; Najim, Ibrahim Ali (International Journal of Body, Mind & Culture (2345-5802), 2026)