G-CSFgranulocyte colony-stimulating factor
G-Jgastrostomy-jejunostomy/Gastro-Jejunal
G-POEMgastric per oral endoscopic myotomy
G1Grade 1 (mild) toxicity
G2Grade 2 (moderate) toxicity
G3Grade 3 (severe) toxicity
G4Grade 4 (potentially life-threatening) toxicity
G6PDglucose-6-phosphate dehydrogenase
GABAGamma-Aminobutyric acid
GABHSgroup A β-hemolytic streptococcal
GADgeneral anxiety disorder
GAD-7Generalised Anxiety Disorder Assessment
GAD65glutamic acid decarboxylase 65-kilodalton isoform
GAHSGlasgow Alcoholic Hepatitis Score
GAKCyclin G-associated kinase
GalNAcN-acetylgalactosamine
GATTGonioscopy-Assisted Transluminal Trabeculotomy
GBMglioblastoma multiforme
GBM-PNCglioblastomas with primitive neuronal components
GBX2gastrulation brain homeobox 2
GC-richGuanine/Cytosine-rich
GCSIGastroparesis Cardinal Symptoms Index
GDMTguideline-directed medical therapy
GDNFglial cell line-derived neurotrophic factor
GEFguanosine nucleotide exchange factor
GEJgastroesophageal junction
GEPgene expression profiling
GEP-NETgastroenteropancreatic neuroendocrine tumor
GERgastroesophageal reflux
GERDgastroesophageal reflux disease
GESgastric emptying scintigraphy
GFMCSGross Motor Function Classification System
GFPgreen fluorescent protein
GFRglomerular filtration rate
GGAGenioglossus Advancement
GGTgamma-glutamyltransferase
GHBPgrowth hormone binding protein
GHDgrowth hormone deficiency
GHRgrowth hormone receptor
GHRHRgrowth hormone releasing hormone receptor
GIBgastrointestinal bleeding
GIPPGastrointestinal Pathogen Panel
GISTgastrointestinal stromal tumor
GLI2Zinc Finger Protein GLI2
GLP1glucagon-like peptide 1
GLP1Rglucagon-like peptide 1 receptor
GLUTglucose transport proteins
GM-CSFgranulocyte macrophage colony-stimulating factor
GMFCSGross Motor Function Classification System
GNASguanine nucleotide binding protein, alpha stimulating
GnRHgonadotropin-releasing hormone
GnRHagonadotropin-releasing hormone agonist
GO-QOLGraves’ ophthalmopathy-specific quality-of-life
GPgemcitabine plus paclitaxel
GPBBglycogen phosphorylase BB isoenzyme
GPCRG-protein-coupled receptor
GPPgastrointestinal pathogen panel
GPSgravitational platelet sequestration
GRADEGrading of Recommendations, Assessment, Development, and Evaluations
GRB2growth factor receptor-bound protein 2
GRCGeneral Recovery Care guidelines
GREgradient recalled echo
GRSGender Reassignment Surgery
GSDglycogen storage disease
GSMgenitourinary syndrome of menopause
GTC seizuregeneralized tonic-clonic seizure
GVHDgraft versus host disease
GWASgenome-wide association study
