tokens: Xenogeneic human serum significantly ( P < 0 . 01 ) increased the number of adherent leukocytes as compared with porcine serum .
folded_tokens: xenogeneic human serum significantly ( p < 0 . 01 ) increased the number of adherent leukocytes as compared with porcine serum .
labels: B-tissue I-tissue I-tissue O O O O O O O O O O O O B-cell_type I-cell_type O O O B-tissue I-tissue O