Recurrence-free survival among breast cancer patients according to miR-92a expression.

<p><i>A)</i> Tumours were divided into four groups based on the staining intensity of miR-92a and recurrence-free survival for the patients was determined, <i>p</i> = 0.065. <i>B)</i> Recurrence-free survival analysis after merging of tumours in Q1–Q2 and Q3–Q4, <i>p</i> = 0.008.