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A psychometric assessment of the St. George's respiratory questionnaire in patients with… http://t.co/YdxjbGO34y http://t.co/TvL9hFc48a
A psychometric assessment of the St. George's respiratory questionnaire in patients with… http://t.co/YdxjbGO34y http://t.co/TvL9hFc48a
#HealthEconJA A psychometric assessment of the St. George’s respiratory questionnaire in patients with COPD using … http://t.co/xs4uR7tsQk