aCGH	array comparative genomic hybridization
AKT	serine-threonine kinase
CISH	chromogenic in situ hybridization
cMET	tyrosine-protein kinase Met
EGFR	epidermal growth factor receptor
FISH	fluorescent in situ hybridization
H-score	hybrid scoring system method
HNSCC	head and neck squamous cell carcinoma
HR	hazard ratio
IHC	immunohistochemistry
MLPA	multiplex ligation-dependent probe amplification
OSCC	oral squamous cell carcinoma
p	p value
PCR	polymerase chain reaction
PDK1	3-phosphoinositide-dependent kinase-1
PH	pleckstrin homology
PI3K	intracellular phosphatidylinositol 3-kinase signaling pathway
PIK3CA or p110	phosphatidylinositol-4,5-bisphosphate 3-kinase
PIP2	phosphatidylinositol 4,5-bisphosphate
PIP3	phosphatidylinositol 3,4,5-trisphosphate
PTEN	phosphatase and tensin homolog encoded on chromosome 10
RT-PCR	reverse transcription polymerase chain reaction
RKT	receptor tyrosine kinases
SISH	silver in situ hybridization
TGFβ/SMAD pathway	transforming growth factor beta/SMAD
TMA	tissue microarray