COVID-19	COronaVIrus Disease 19
HR	Heart rate
MDD	Major depressive disorder
MS	Multiple Sclerosis
mHR	mean HR
PPG	Photoplethysmography
PHQ-8 8-item	Patient Health Questionnaire
RADAR-CNS	Remote assessment of disease and relapse—central nervous system
RADAR-MDD	Remote assessment of disease and relapse—major depressive disorder
RMT	Remote measurement technology
SARS-CoV-2	severe acute respiratory syndrome coronavirus 2
stdHR	Standard deviation Heart Rate
WHO	World Health Organization