Cell-binding studies. Flow cytometric analysis of the cell-binding capabilities of 1F5/SA, Lym-1/SA, and HD39/SA to 3 different B lymphoma cell lines: Ramos (A), Raji (B), and FL-18 (C). For all studies, 2 controls were included, one omitting the primary conjugate and one using a nonbinding control conjugate HB8181/SA.