passages.id: split_9_validation_907_passage
passages.type: progene_text
passages.text: Because of this , and the prevalence of autoimmunity , splenomegaly , and lymphadenopathy , we quantitated levels of TACI ligands , a proliferation inducing ligand ( APRIL ) and B cell activating factor ( BAFF ) and TACI in serum of 77 patients .