Minireviews
Copyright ©2013 Baishideng Publishing Group Co.
World J Meta-Anal. Nov 26, 2013; 1(3): 97-101
Published online Nov 26, 2013. doi: 10.13105/wjma.v1.i3.97
Figure 3
Figure 3 Classification of duplicates proposed by our team. Types of duplicates signed by blue are often permitted, but types of duplicates signed by red are unethical.