sera from 51 patients with multiple myeloma , 48 patients with monoclonal gammopathy of undetermined significance ( mgus ) , and 10 patients with waldenstrom 's macroglobulinemia ( 78 men and 31 women ) were analyzed by radioimmunoassay for four placental proteins : the common alpha-subunit of glycoprotein hormones ( alpha ) , chorionic gonadotropin and/or its free beta subunit ( cg-beta ) , placental lactogen ( pl ) , and `` '' pregnancy-specific '' '' beta 1-glycoprotein ( sp1 ) , to see if these would be useful tumor markers to distinguish benign from malignant monoclonal gammopathies .
C0018062
chorionic gonadotropin
C0106132
cg-beta