Follow-up evaluations were at 4 and 12 weeks after injection, when the study was unblended, with further follow-up in the botulinum toxin type A group at 24 weeks.

• 于注射后第4及12周，研究尚未混合时，进行后续的评估，并于第24周对肉毒杆菌组做进一步的追踪。