Roohafza, H., Molaee, A., Afshar, H., Mazaheri, M., Feizi, A., Hassanzadeh-Keshteli, A., & Adibi, P. (2016). The Association of Psychological Comorbidity with the Number of Functional Gastrointestinal Disorders. International Journal of Body, Mind and Culture, 3(1), 22-29. https://doi.org/10.22122/ijbmc.v3i1.60