Paíno T, Paiva B, San Miguel JF. Reply to “Response to “CD20 positive cells are undetectable in the majority of multiple myeloma cell lines and are not associated with a cancer stem cell phenotype”. Haematologica 2012;97(7):1110-1114. Haematologica 2012; 98(1):e10-e10; https://doi.org/10.3324/haematol.2012.077727.