Meta-Analysis
Copyright ©2013 Baishideng.
World J Meta-Anal. May 26, 2013; 1(1): 47-56
Published online May 26, 2013. doi: 10.13105/wjma.v1.i1.47
Figure 1
Figure 1 Flow chart of included case-control studies that tested the association between periodontal disease and risk of coronary heart disease. PD: Periodontal disease; CHD: Coronary heart disease; CNKI: China National Knowledge Infrastructure.