Figure 1From: Classification of chronic cough by systematic treatment cascade trial starting with beta agonistDiagnostic treatment cascade. RD, PR and NR stand for Responder, Partial-responder and Non-responder, respectively. BRC, AC, SBS and GERD stand for β2 agonist responsive cough, Atopic cough, Sinobronchial syndrome and Gastroesophageal reflux disease, respectively.Back to article page