Resolution: standard / high
Figure 2.
Weighted Kaplan-Meier plots of survival over the follow-up period by level of the
score on the Social Network Index (triangles, 0–1; circles 2; stars, 3–4).
Obisesan and Gillum BMC Geriatrics 2009 9:33 doi:10.1186/1471-2318-9-33
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