1. Inspiratory muscle training compared with physiotherapy in patients with chronic airflow limitation;Pardy, R.L.; Rivington, R.N.; Despas, P.J.; Macklem, P.T.;Am Rev Respir Dis,1981
2. Clinical experience with inspiratory resistive breathing training;Andersen, J.B.; Falk, P.;Int Rehabil Med,1984
3. Increased exercise performance in patients with severe COPD following inspiratory resistive training;Sonne, L.J.; Davis, J.A.;Chest,1982
4. Inspiratory resistance training in severe chronic obstructive pulmonary disease;Bjerre-Jepsen, K.; Secher, N.H.; Kok-Jensen, A.;Eur J Respir Dis,1981
5. Evaluation of a ventilatory muscle endurance training program in the rehabilitation of patients with chronic obstructive pulmonary disease;Levine, S.; Weiser, P.; Gillen, J.;Am Rev Respir Dis,1986