Epidemiology of chronic rhinosinusitis: results from a cross‐sectional survey in seven <scp>C</scp>hinese cities

Abstract Background Chronic sinusitis (CRS) is a common otorhinolaryngologic disease that is frequently encountered in everyday practice, but there is a lack of precise data regarding the prevalence of CRS in developing countries. We performed a national investigation in China to determine the preva... View More