The health situation of patients with obstructive lung disease has been greatly improved by modem pharmacological innovations. A vast amount of research has been carried out in this field. In general the results have rested firmly on a scientific basis, and the absolute magnitude of the improvement and effects has been verified.
No takes yet. Share an insight, caveat, or question.
Merja Herala (1993) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: