CD19 and B-cell non-Hodgkin lymphoma: In the study by [35] use eight known CD19 antibodies out of which CD19 scFvs such as FMC63 CAR KHYG-1 and 4G7 CAR KHYG-1 produce with lentiviral packaging to lyse CD19 cell lines and conclude its importance in CAR T cell study with related to B cell lymphoma.