label: DNA analysis of breast cancer by phosphatidylinositol-4,5-bisphosphate 3-kinase, catalytic subunit alpha (PIK3CA) gene analysis, reported as PIK3CA gene mutation status
label_lc: dna analysis of breast cancer by phosphatidylinositol-4,5-bisphosphate 3-kinase, catalytic subunit alpha (pik3ca) gene analysis, reported as pik3ca gene mutation status