Persistent airflow limitation in adult - onset nonatopic asthma in associated with serologic evidence of Chlamydia pneumoniae infection. - ten Brinke,A.; van Dissel,J.T.; Sterk,P.J.; Zwinderman,A.H.; Rabe,K.F.; Bel,E.H. (J Allergy Clin Immunol, 2001)