Alcohol intake and cancer of the upper digestive tract. Confounding in such studies is important.
Cheng
K K
KK
Cummins
C
C
Maric
R
R
D000428:Alcohol Drinking / Q000009:adverse effects*; D015986:Confounding Factors, Epidemiologic; D005770:Gastrointestinal Neoplasms / Q000209:etiology*; D006801:Humans