GALNT2 and neuroblastoma: The immunoreactivity of GALNT2 in NB tumors was categorized into 4 groups: “0” (no expression); “1+” (weak expression, expression in ~10–35% of neuroblastic cells); “2+” (moderate expression, expression in ~35–70% of neuroblastic cells); and “3+” (strong expression, expression in >70% of neuroblastic cells).