AE	Adverse effects
BoNT	Botulinum toxin
CSM	Corrugator supercilia muscle
DAO	Depressor anguli oris
DLI	Depressor labii inferioris
FM	Frontalis muscle
HAS	Human Serum Albumin
IM	Intramuscularly
U	International Unit
IV	Intravenously
L	Liquid
LLS	Levator labii superioris
LLSAN	Levator labii superioris alaeque nasi
NACL	Sodium chloride
NAPs	Neurotoxin-associated complexing proteins
OOc	Orbicularis oculi
OOr	Orbicularis oris
P	Powder
PO	Orally
q.s.	Quantum sufficit
US	Ultrasonography
Zmi	Zygomaticus minor
ZMj	Zygomaticus major
IP	Injection points
n	Number
F	Female
M	Male
Up	Upper
L	Lower
NR	Not reported