Fig. 1

Terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick-end-labeling (TUNEL) staining using 3,3′-diaminobenzidine tetrachloride to assess apoptosis. a More TUNEL-positive tumor cells were observed in samples from the mistletoe group (MG) than in the non-mistletoe group (NMG). b Representative TUNEL-stained samples from the non-mistletoe group (NMG)