Vitamins to prevent cancer: supplementary problems.
Forman
David
D
Centre of Epidemiology and Biostatistics, University of Leeds, Leeds, UK. d.forman@leeds.ac.uk
Altman
Douglas
D
D016588:Anticarcinogenic Agents / Q000627:therapeutic use*; D000975:Antioxidants / Q000009:adverse effects / Q000627:therapeutic use*; D005770:Gastrointestinal Neoplasms / Q000517:prevention & control*; D006801:Humans; D015201:Meta-Analysis as Topic; D012107:Research Design; D016896:Treatment Outcome; D014815:Vitamins / Q000009:adverse effects / Q000627:therapeutic use*
D016588:Anticarcinogenic Agents; D000975:Antioxidants; D014815:Vitamins