GEP-NEC	Gastroenteropancreatic Neuroendocrine Carcinomas
NET	Neuroendocrine tumor
NEC	Neuroendocrine carcinoma
E-NEC	Esophageal neuroendocrine carcinoma
G-NET	Gastric neuroendocrine tumor
TACE	Transarterial chemoembolization
ICI	Immune checkpoint inhibitor
SCCE	Small-cell carcinoma of the esophagus
SCLC	Small-cell lung cancer
CE-RT	Platinum plus etoposide with radiotherapy
CF-RT	Cisplatin plus 5-fluorouracil with radiotherapy
PRRT	Peptide receptor radionuclide therapy
C-NET	Colonic neuroendocrine tumor
R-NET	Rectal neuroendocrine tumor
EMR	Endoscopic mucosal resection
ESD	Endoscopic submucosal dissection
r-EUS	Rectal endoscopic ultrasound
LAR	Low anterior resection
TME	Total mesorectal excision