A. Yilmaz, B. E. Cumurcu, T. Tasliyurt, A. G. Sahan, Y. Ustun, and I. Etikan, “ Role of psychiatric disorders and irritable bowel syndrome in asthma patients ”, Clinics, vol. 66, no. 4, pp. 591–597, Jan. 2011, doi: 10.1590/S1807-59322011000400012.