Perceived social support and tumor estrogen/progesterone receptor status as predictors of natural killer cell activity in breast cancer patients .
perceived social support and tumor estrogen/progesterone receptor status as predictors of natural killer cell activity in breast cancer patients .
O O O O B-other_name B-protein_family_or_group I-protein_family_or_group O O O O B-cell_type I-cell_type I-cell_type O O B-multi_cell I-multi_cell B-multi_cell O