The thymus contained small numbers of thymocytes , and TUNEL staining showed that higher population of thymocytes were undergoing apoptosis .
the thymus contained small numbers of thymocytes , and tunel staining showed that higher population of thymocytes were undergoing apoptosis .
O B-body_part O O O O B-cell_type O O B-other_name I-other_name O O O O O B-cell_type O O B-other_name O