OnabotA injections
Participants received injections of onabotA in the glabellar region from one investigator (BW). Each participant received 20 units total, which was diluted as 100 units onabotA/2.5 ccs non-preserved injectable saline for a total volume per injection of 4 units/0.1 cc. This dose was distributed across the injection sites and is adequate to inactivate the glabellar region in naïve participantsOnabotulinumtoxinA injection sites. This figure was modified from Blumenfeld and colleagues