title: Immortal person-time bias in relation to the use of nonsteroidal anti-inflammatory drugs and statins in the prevention of esophageal cancer in patients with Barrett's esophagus.
authors.forename: Laurent
authors.initials: L
authors.lastname: Azoulay
authors.forename: Samy
authors.initials: S
authors.lastname: Suissa
mesh_terms: D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000627:therapeutic use*; D001471:Barrett Esophagus / Q000150:complications*; D004938:Esophageal Neoplasms / Q000517:prevention & control*; D006801:Humans; D019161:Hydroxymethylglutaryl-CoA Reductase Inhibitors / Q000627:therapeutic use*
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D019161:Hydroxymethylglutaryl-CoA Reductase Inhibitors