Kim, D.S., Nho, H.N., Kim, C., Lee, H.W., Yoon, J.H., Uhm, J.H., 2009. Diagnosis of Functional Gastrointestinal Disorders with Rome III Criteria in Korean Pediatric and Adolescent Patients: Clinical Usefulness of QPGS 12.. https://doi.org/10.5223/kjpgn.2009.12.2.120