No abstract available
MeSH terms
-
Antioxidants / adverse effects
-
Antioxidants / therapeutic use*
-
Clinical Trials as Topic / methods*
-
Humans
-
Neoplasms / prevention & control*
-
Neoplasms / therapy
-
alpha-Tocopherol / adverse effects
-
alpha-Tocopherol / therapeutic use
-
beta Carotene / adverse effects
-
beta Carotene / therapeutic use
Substances
-
Antioxidants
-
beta Carotene
-
alpha-Tocopherol