Routine Vitamin Supplementation to Prevent Cancer: Update of the Evidence from Randomized Controlled Trials, 1999-2002

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Search Number	Search Terms/Strategy
#18	Search #17 AND #14 Limits: Publication Date from 1999 to 2002, English, Human
#17	Search #16 AND #15 Limits: Publication Date from 1999 to 2002, English, Human
#16	Search randomized or controlled or clinical Limits: Publication Date from 1999 to 2002, English, Human
#15	Search trial Limits: Publication Date from 1999 to 2002, English, Human
#14	Search #8 AND #9 Field: All Fields, Limits: Publication Date from 1999 to 2002, English, Human
#13	Search #8 AND #9 Field: All Fields, Limits: Publication Date from 1999 to 2002, English, Randomized Controlled Trial, Human
#12	Search #8 AND #9 Field: All Fields, Limits: English, Randomized Controlled Trial, Human
#11	Search #8 AND #9 Field: All Fields, Limits: English, Human
#10	Search #8 AND #9
#9	Search #6 OR #7
#8	Search #4 OR #5
#7	Search "precancerous conditions"[MESH]
#6	Search "neoplasms"[MESH]
#5	Search "antioxidants"[MESH]
#4	Search ("Vitamins/administration and dosage"[MESH] OR "Vitamins/therapeutic use"[MESH])