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. Author manuscript; available in PMC: 2015 Dec 3.
Published in final edited form as: JAMA. 2014 Apr 2;311(13):1300–1307. doi: 10.1001/jama.2014.2626

Figure 2. Sexual Function of Participants Over Timea.

Figure 2

Shaded areas represent period during which participants were to take assigned pills. Plot lines indicate group mean values; error bars, 95% CIs.

aAssessed by the International Index of Erectile Function (IIEF).

bThree participants assigned tadalafil and 1 assigned placebo did not respond to all items.