Task: Information Extraction
Input (English): Daily supplementation significantly increased plasma concentrations of alpha-tocopherol and beta-carotene in the supplemented group ( Delta 14.4 ( SE 3.2 ) and 0.4 ( se 0.1 ) micromol/l ; P < 0.001 and P < 0.01 ) .
Output (English): plasma concentrations of alpha-tocopherol and beta-carotene