A systematic review but systematically confounded?
Detterbeck
Frank C
FC
D002289:Carcinoma, Non-Small-Cell Lung / Q000175:diagnosis* / Q000453:epidemiology; D015986:Confounding Factors, Epidemiologic; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis* / Q000453:epidemiology; D049268:Positron-Emission Tomography / Q000706:statistics & numerical data*; D011379:Prognosis; D012196:Review Literature as Topic