title: PD-L1 Expression as a Predictive Biomarker: Is Absence of Proof the Same as Proof of Absence?
authors.affiliation: AmeriPath Indiana, Indianapolis.
authors.forename: Feriyl
authors.initials: F
authors.lastname: Bhaijee
authors.affiliation: Department of Pathology, Johns Hopkins University, Baltimore, Maryland.
authors.forename: Robert A
authors.initials: RA
authors.lastname: Anders
mesh_terms: D060890:B7-H1 Antigen / Q000032:analysis*; D014408:Biomarkers, Tumor / Q000032:analysis*; D002289:Carcinoma, Non-Small-Cell Lung / Q000737:chemistry*; D005260:Female; D005455:Fluorescent Antibody Technique / Q000592:standards*; D006801:Humans; D007150:Immunohistochemistry / Q000592:standards*; D008175:Lung Neoplasms / Q000737:chemistry*; D008297:Male
chemical_list: D060890:B7-H1 Antigen; D014408:Biomarkers, Tumor