Increased bronchial hyperresponsiveness after inhaling salbutamol during one year is not caused by subsensitization to salbutamol. - Van Schayck,C.P.; Graafsma,S.J.; Visch,M.B.; Dompeling,E.; van Weel,C.; van Herwaarden,C.L. (J. Allergy Clin. Immunol., 1990)