COVID-19	coronavirus disease 2019
SARS-CoV-2	severe acute respiratory syndrome coronavirus-2
ARDS	acute respiratory distress syndrome
MCs	mast cells
COPD	chronic obstructive pulmonary disease
TNF-α	tumor necrosis factor alpha
IL	interleukin
CPA3	carboxypeptidase A3
CKD	chronic kidney disease
GFR	glomerular filtration rate
ESR	erythrocyte sedimentation rate
aPTT	activated partial thromboplastin time
PTI	prothrombin index
INR	international normalized ratio
CRP	C-reactive protein
Me	median
CHD	coronary heart disease
CHF	chronic heart failure
NIV	non-invasive ventilation
IMV	invasive mechanical ventilation
GBT	general blood test