Ultrasound device helps in ruling out maxillary sinus fluid in acute rhinosinusitis: how we do it.Published in:Clinical Otolaryngology, 2011, v. 36, n. 5, p. 491, doi. 10.1111/j.1749-4486.2011.02321.xBy:Teppo, H.;Revonta, M.Publication type:Article