Algra, Annemijn M Effects of regular aspirin on long-term cancer incidence and metastasis: a systematic comparison of evidence from observational studies versus randomised trials. [electronic resource] - The Lancet. Oncology May 2012 - 518-27 p. digital Publication Type: Comparative Study; Journal Article; Review; Systematic Review ISSN: 1474-5488 Standard No.: 10.1016/S1470-2045(12)70112-2 doi Subjects--Topical Terms: Antineoplastic Agents--therapeutic useAspirin--therapeutic useCase-Control StudiesCohort StudiesHumansIncidenceNeoplasm Metastasis--prevention & controlNeoplasms--epidemiologyRandomized Controlled Trials as TopicRisk Factors