Lulling, J., Delwiche, J. P., Hidinger, KG., & Prignot, J. (1983). Influence of Different Extension-actuator Tubes On the Bronchodilation Effect of a Terbutaline Sulfate Aerosol. European Journal of Respiratory Diseases, 64(1), 33-37. https://hdl.handle.net/2078.5/62128 (Original work published 1983)