Ludviksdottir D., Th. Valtysdottir S., Hedenström H., Hällgren R., & Gudbjörnsson B. (2016). Eight-year follow-up of airway hyperresponsiveness in patients with primary Sjögren’s syndrome. Upsala Journal of Medical Sciences, 122(1), 51–55. https://doi.org/10.1080/03009734.2016.1239663