In vivo test of a new hands-free tracheostoma inhalation valve, a randomised crossover study.Published in:Clinical Otolaryngology, 2013, v. 38, n. 5, p. 420, doi. 10.1111/coa.12168By:Kalkeren, T.A.;Houwen, E.B.;Schrijver, W.A.M.E.;Verkerke, G.J.;Laan, B.F.A.M.Publication type:Article