has part
has part
has_part
characteristic of
has modifier
mature B cell
decreased mature B cell number
absent mature B cells
absent mature B lymphocyte
MP:0008212
absent mature B-lymphocyte
absence of the mature form of a B cell, a type of lymphocyte whose defining characteristic is the expression of an immunoglobulin complex
absent mature B-cell
MPheno.ontology
abnormal
absent