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Comparision of total IIEF-5 scores between nerve-sparing groups following robot-assisted laparoscopic radical prostatectomy. (A) Mean±SEM plot of total IIEF-5 score across 2 subgroups. (B) Mean±SEM plot of total IIEF-5 score across 4 subgroups. IIEF-5, the abridged five-item version of the International Index of Erectile Function Questionnaire; SEM, standard error of measurements.
