Systematic Reviews
Copyright ©The Author(s) 2020.
World J Meta-Anal. Jun 28, 2020; 8(3): 245-264
Published online Jun 28, 2020. doi: 10.13105/wjma.v8.i3.245
Figure 1
Figure 1 Lung cancer searches. COPD: Chronic obstructive pulmonary disease.
Figure 2
Figure 2 Chronic obstructive pulmonary disease searches.
Figure 3
Figure 3 Heart disease, stroke and circulatory disease searches. COPD: Chronic obstructive pulmonary disease.