Effect of integrated yoga and naturopathy intervention on psychological states and quality of life in a patient with irritable bowel syndrome: a single case report - Alkousar Taz Mujeebullah; Bharanidharan Ravi; Srisathya Seshan Venkatesan; Kalavathi Subramaniam Dhamodhini; Renjish Mohanan (International Journal of Basic & Clinical Pharmacology, 2026)