The graph in context, with figure text reading: Kaplan‐Meier plot showing cumulative risk of Alzheimer's disease (AD) for persons who had received at least one antiviral prescription (acyclovir analogue) prior to censoring date (red) or no antiviral prescription prior to censoring date (blue). Mantel‐Cox log rank test P = .032. Note that the x‐axis depicts the age of the individual and the y‐axis is the cumulative risk of AD.
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