4) Scott KM, Von Korff M, Ormel J, Zhang MY, Bruffaerts R, Alonso J, et al. Mental Disorders among Adults with Asthma : Results from the World Mental Health Surveys. Gen Hosp Psychiatry 2007; 29: 123-33.
5) Jiang M, Qin P, Yang X. Comorbidity between depression and asthma via immune-inflammatory pathways: A meta-analysis. J Affect Disord 2014; 166: 22-9.