A B-1 B cell that has the phenotype CD5-negative, but having other phenotypic attributes of a B-1 B cell. [ http://www.ncbi.nlm.nih.gov/pubmed/11861604 GOC:add ]

Synonyms: B1b B-cell B1b cell B1b B-lymphocyte B1b B cell B-1b B-cell B-1b B lymphocyte B-1b B-lymphocyte B1b B lymphocyte

This is just here as a test because I lose it