BMI	Body mass index
CRP	C-reactive protein
eGFR	Estimate of glomerular filtration rate based on serum creatinine or cystatin C
fT3	Free tri-iodine thyroxine
fT4	Free tetra-iodine thyroxine
GBS	Guillain-Barré syndrome
HDL	High-density lipoptotein
LDL	Low-density lipoptotein
MCAS	Mast cell activation syndrome
ME/CFS	Myalgic encephalomyelitis/chronic fatigue syndrome
NAB	PanIg reactivity against SARS-CoV-1 nucleocapsid protein
panIg	Immunoglobulins of all classes (A, D, G, E, M)
pBNP	Pro-brain natriuretic peptide
PEM	Post exertional malaise
POTS	Postural tachycardia syndrome
PACS	Post-acute COVID-19 syndrome
PACVS	Post-acute COVID-19 vaccination syndrome
ROC	Receiver-operator characteristics
SAB	PanIg reactivity against SARS-CoV-2 spike S1 protein
SFN	Small fiber neuropathy
sNFL	Serum neurofilament light chain
TPO	Thyroid peroxidase
TSH	Thyroid-stimulating hormone
TSH-R	Receptor for thyroid-stimulating hormone