title: Is meta-analysis really meta-physics?
authors.affiliation: Department of Radiation Oncology, Hospital of the University of Pennsylvania, Philadelphia 19104, USA.
authors.forename: M
authors.initials: M
authors.lastname: Machtay
authors.forename: L R
authors.initials: LR
authors.lastname: Kaiser
authors.forename: E
authors.initials: E
authors.lastname: Glatstein
mesh_terms: D015982:Bias; D002289:Carcinoma, Non-Small-Cell Lung / Q000453:epidemiology / Q000532:radiotherapy; D006801:Humans; D008175:Lung Neoplasms / Q000453:epidemiology / Q000532:radiotherapy; D015201:Meta-Analysis as Topic