8Irwin RS,Corrao WM, Pratter MR. Chronic persistent cough in the a- dult :the spectrum and frequency of causes and successful outcome of specific therapy [ J ]. Am Rev Respir Dis, 1981,123 :4 13 - 417.
10Irwin RS, Madison JM. Anatomical diagnostic protocol in evaluating chronic cough with specific reference to gastroesophageal reflux disease [J]. AM .1 Meal,2000,108 (Suppl 4a) :1265 - 1305.