“…Compared to large retrospective multicenter studies or cohorts (1,6,7), we found a higher rate of recurrence (28% vs. 19%). This higher rate may be partly a result of the design of the present study, using a specifically dedicated questionnaire and longer follow-up (58.7 months) compared to previous retrospective studies with follow-up limited to three months (1,7,8). The mechanisms underlying clinical recurrence are unknown.…”