Fig. 1: PRISMA trial flow diagram.
From: Daytime symptoms of chronic obstructive pulmonary disease: a systematic review
COPD chronic obstructive pulmonary disease.
Fig. 1: PRISMA trial flow diagram. | npj Primary Care Respiratory Medicine
From: Daytime symptoms of chronic obstructive pulmonary disease: a systematic review
COPD chronic obstructive pulmonary disease.
