Huynh Kim Hieu, MD, MSc, PhD student University Medical Center Groningen Center for Uroneurology Hanzeplein 1, 9713 GZ Groningen THE NETHERLANDS (P) 31 (0)50 363 9141 - (C) 31 (0)6 342 69587 H.K.Hieu@med.umcg.nl; huynhkimhieumd@gmail.com