Hearing in FVB/N mice treated with sildenafil citrate.

<p>FVB/N mice at 45 days after birth were treated with vehicle (N = 4) or sildenafil (N = 4). Hearing thresholds were compared and <i>P</i> values were determined as described in the legend to <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0079226#pone-0079226-t001" target="_blank">Table 1</a>).