Vitamin K and childhood cancer.
Draper
G J
GJ
Stiller
C A
CA
D015982:Bias; D015984:Causality; D002648:Child; D006801:Humans; D009369:Neoplasms / Q000139:chemically induced / Q000453:epidemiology*; D012107:Research Design / Q000592:standards*; D014812:Vitamin K / Q000009:adverse effects*
D014812:Vitamin K