title: Give me a sign, any sign.
authors.forename: Peter J
authors.initials: PJ
authors.lastname: Mazzone
mesh_terms: D014408:Biomarkers, Tumor / Q000032:analysis; D001944:Breath Tests / Q000295:instrumentation; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis* / Q000628:therapy; D055549:Volatile Organic Compounds / Q000032:analysis
chemical_list: D014408:Biomarkers, Tumor; D055549:Volatile Organic Compounds