ANLFQ	Appearance of Neck and Lower Face Questionnaire
BAS-PP	Bother Assessment Scale—Platysma Prominence
BoNTA	Botulinum Toxin Type A
BTX	Intradermal Botulinum Toxin
C-APPS	Clinician Allergan Platysma Prominence Scale
CEA	Clinician Erythema Assessment
CFL	Crow’s Feet Lines
CI	Confidence Interval
FHL	Forehead Lines
FLO-11	Facial Line Outcomes Questionnaire
FLSQ	Facial Line Satisfaction Questionnaire
FWS-A	Facial Wrinkle Scale with Asian Photonumeric Guide
GAIS	Global Aesthetic Improvement Scale
GL	Glabellar Lines
HPSS	Health-Related Quality of Life Psychological Self-Perception Scale
ITT	Intent-To-Treat
IU	International Units
Q-LES-Q-SF	Quality of Life Enjoyment and Satisfaction Questionnaire—Short Form
mITT	Modified Intent-To-Treat
onabotA	OnabotulinumtoxinA
P-APPS	Participant Allergan Platysma Prominence Scale
PP	Platysma Prominence
PROs	Patient-Reported Outcome
RCT	Randomized Controlled Trial
TEAE	Treatment-Emergent Adverse Event
TEWL	Transepidermal Water Loss
U	Units (of botulinum toxin and for dosage of BoNTA)