Lymphoid Tissue Animals 6 controlled study 6 nonhuman 6 priority journal 6 B-Lymphocytes 4 Cancer Vaccines 4 Dendritic Cells 4 Melanoma 4 Mice 4 Mice, Inbred C57BL 4 Rats 4 Rats, Wistar 4 animal experiment 4 animal tissue 4 article 4 intestine lymphatic tissue 4 peyer patch 4 rat 4 Aging 2 Animal 2 Animals, Suckling 2 Antibodies, Bacterial 2 Antigens, Neoplasm 2 Antigens, Surface 2 Apoptotic cell 2 Beta-Globulins 2 CD207(+) cells 2 CD207+ cells 2 CD4 Lymphocyte Count 2