Fig. 4

Pre- and postoperative changes in Total Score (total points given by each patient for all questions). Each dot represents the total given score of one patient for the all of the four questions, (less than 12 dots and lines result from overlapping scores, i.e. the same score was given by more than one patient for the same question; maximum points: 16). The red line shows the tendency of increase. Average mean ± SD is also presented