in da x wistar f1 rats , growth of 10 ( 4 ) wistar-specific sp 1 carcinoma cells s.c. was commonly prevented by a mild subclinical graft=versus-host reaction produced by injecting 50 x 10 ( 6 ) wistar spleen cells i.p . either concurrently with the tumor or 7 to 14 days previously , spleen cells alone had no effect on established tumor , but their injection on day 14 significantly reduced the recurrence rate after excision of tumor on day 21 .
C0037999
spleen
C0037993
spleen