CagA	Cytotoxin-associated gene A
CCUG	Culture Collection University of Gothenburg
CPR	C-reactive protein
ELISA	Enzyme-linked immunosorbent assay
GE	Glycine acid extract
HCA	Hierarchical cluster analysis
HLO	Helicobacter like organism
IL	Interleukin
IR	Infrared spectroscopy
K-NN	K-nearest neighbors
LPS	Lipopolysaccharide
MALT	Mucosa-associated lymphoid tissue
NIR	near-infrared spectroscopy
PCR	Polymerase chain reaction
RUT	rapid urease test
TNF	Tumor necrosis factor
W	Wavenumber windows
VacA	Vacuolating cytotoxin A