Assessing cough symptom severity in refractory or unexplained chronic cough: findings from patient focus groups and an international expert panel
Background Cough symptom severity represents an important subjective end-point to assess the impact of therapies for patients with refractory or unexplained chronic cough (RCC/UCC).As existing instruments assessing the severity of Scalp Care cough are neither widely available nor tested for measurement properties, we aim to develop a new patient-re