Abstract Background Little is known about prevalence and risk factors of allergic rhinitis and chronic nasal symptoms among adults in Vietnam. We aimed to estimate the prevalence. risk factor patterns and co-morbidities of allergic rhinitis and chronic nasal symptoms in one urban and one rural area in northern Vietnam. Methods A cross-sectional questionnaire survey was conducted from ... https://parisnaturalfoodes.shop/product-category/instant-org-coffee-substitute/