PMC6074184_01
The percentage of CD19+ B lymphocytes; a) at admission b) 20 days after stopping levetiracetam c) 2 months after stopping levetiracetam.
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Peripheral blood flow cytometric analysis revealed the absence of B cells (CD19+ B cells; <1%) (n: 7-23%) (Figure 1). B cells gradually increased three weeks later (CD19+ B cells: 4%, CD20: 4.1%, CD21:2.8%, CD22: 5.8%) and returned to normal within two months (CD19+ B cells: 9.8%) (Figure 1).