6-OHDA	6-hydroxydopamine
AS	adjusting steps
BoNT-A	botulinum neurotoxin-A
BW	body weight
CPu	caudate-putamen (striatum)
DA	dopamine
hemi-PD	hemiparkinsonian
ir	immunoreactive
IT	initiation time
M	month
MFB	medial forebrain bundle
PD	Parkinson’s disease
rpm	rotations per minute
SNpc	substantia nigra pars compacta
TH	tyrosine hydroxylase
VTA	ventral tegmental area