bp	base pair
CLND	complete lymph node dissection
CD56	neural cell adhesion molecule
CT	computerised tomography
EpCAM	epithelial cell adhesion molecule
FDA	food and drug administration
FFPE	formalin-fixed paraffin-embedded
IF	indirect immunofluorescence
IgG1	immunoglobulin G1
INFγ	interferon gamma
ILI	isolated limb infusion
ILP	isolated limb perfusion
IPLP	isolated pelvic and limb perfusion
MCCs	Merkel cell carcinomas
MCPyV	Merkel cell polyomavirus
NB	neuroblastoma
NCCN	National Comprehensive Cancer Network
NIH3T3	mouse embryonic fibroblast cells
OS	overall survival
PD-1	programmed cell death protein 1
PD-L1	programmed death-ligand 1
RNAs	ribonucleic acids
RT	radiotherapy
RT-PCR	real-time polymerase chain reaction
SNB	sentinel lymph node biopsy
SD	standard deviation
SV40	simian vacuolating 40 polyomavirus
TNF	tumour necrosis factor
TrkA	tropomyosin-related kinase A
USA	United States of America
UV	ultraviolet
VEGFR	vascular endothelial growth factor receptor
WSE	wide surgical excisions
WGSE	wide gluteal surgical excision
SDi	stable disease
PFS	Progression-free survival