I did not know of the sgn40 study. Thank you. I will look at that. I expected 40 to resurface as sgn45 as the naked antibody, like the 30, did not seem to have much anti-tumor activity. With SGEN's new linker and chemo 40 (or 45) could emerge as an excellent candidate in B-cell. Maybe better than the Roche 22 or 79. Let's hope.