Poster 57: Time to Retreatment with Botulinum Toxin A in Upper Limb Spasticity Management: Initial Data from the Upper Limb International Spasticity (ULIS)‐III Study. Issue 9 (19th September 2017) - Turner‐Stokes, Lynne; Ashford, Stephen; Jacinto, Jorge; Fheodoroff, Klemens; Maisonobe, Pascal; Balcaitiene, Jovita