The image for Figure 1 is incorrect. The correct image for Figure 1 can be seen here:

The Y axis label is 'Relative Rate', and the X axis label is 'Years of Treatment'.
Footnotes
Competing Interests: No competing interests declared.
The image for Figure 1 is incorrect. The correct image for Figure 1 can be seen here:

The Y axis label is 'Relative Rate', and the X axis label is 'Years of Treatment'.
Competing Interests: No competing interests declared.