AE	Adverse event
ARDS	Acute respiratory distress syndrome
BCMA	B-cell maturation antigen
BID	Twice daily
CAR	Chimeric antigen receptor
CI	Confidence interval
COVID-19	Coronavirus disease 2019
CRP	C-reactive protein
EV	Extracellular vesicle
GPRC5D	G protein-coupled receptor family C group 5 member D
IFN	Interferon
IL	Interleukin
ITT	Intention-to-treat
JAK	Janus kinase
MHC	Major histocompatibility complex
miRNA	MicroRNA
MM	Multiple myeloma
MSC	Mesenchymal stem cell
NK	Natural killer
PCR	Polymerase chain reaction
RR	Relative risk
SARS-CoV-2	Severe acute respiratory syndrome coronavirus 2
sEV	Small extracellular vesicle
TGF-β	Transforming growth factor-beta
TNF	Tumor necrosis factor
VFD	Ventilator-free days