Specialist Nurse Cornwall Healthcare Trust Lamellion Hospital Liskeard, Cornwall, UK
Giovannucci E, Stampfer MJ, Colditz GA, et al. Multivitamin use, folate, and colon cancer in women in the Nurses' Health Study. Ann Intern Med 1998 Oct 1;129:517–24Question Is folate intake from diet or dietary supplements associated with a decreased risk of colon cancer in women?
Source of funding: in part, National Institutes of Health.
For correspondence: Dr E Giovannucci, Channing Laboratory, 181 Longwood Avenue, Boston, MA 02115, USA. Fax +1 617 432 2435.