APCOT	App-Controlled Treatment Monitoring and Support Trial
CE	Ethics Committee
COSMIN	COnsensus-based Standards for the selection of health Measurement Instruments
ePROMs	Electronic Patient-Reported Outcome Measures
ePRO	Electronic Patient-Reported Outcome
EORTC	European Organisation for Research and Treatment of Cancer
EORTC QLQ-C30	European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire Core 30
EORTC QLQ-H&N43	European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire Head and Neck 43
EORTC QLQ-BR23	European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire Breast Cancer 23
EORTC QLQ-LC13	European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire Lung Cancer 13
EORTC QLQ-PATSAT-C33	European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire Patient Satisfaction with Cancer Care 33
EORTC QLQ-COMU26	European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire Cancer Outpatient Module 26
EQ-5D-5L	EuroQol 5-Dimension 5-Level questionnaire
ESMO	European Society for Medical Oncology
FACT-H&N	Functional Assessment of Cancer Therapy Head and Neck
FACTG	Functional Assessment of Cancer Therapy General
FACIT	Functional Assessment of Chronic Illness Therapy
HADS	Hospital Anxiety and Depression Scale
HCPs	Healthcare Professionals
HNC	Head and Neck Cancer
HRQOL	Health-Related Quality of Life
IPOS	Integrated Palliative Outcome Scale
MDADI	MD Anderson Dysphagia Inventory
MDASI	MD Anderson Symptom Inventory
PROMIS	Patient-Reported Outcomes Measurement Information System
PROMs	Patient-Reported Outcome Measures
PROs	Patient-Reported Outcomes
PRO-CTCAE	Patient-Reported Outcomes version of the Common Terminology Criteria for Adverse Events
QOL	Quality of Life
QR	Quick Response
SD	Standard Deviation
SF-12	12-item Short Form Health Survey
SF-36	36-item Short Form Health Survey
SHI	Sleep Hygiene Index
SMS	Short Message Service
SOAL	Swallowing Outcome After Laryngectomy
STOP	STOP questionnaire
STROBE	Strengthening the Reporting of Observational Studies in Epidemiology
UW-QOL	University of Washington Quality of Life questionnaire
VHI	Voice Handicap Index