AIDS-related non-Hodgkin's lymphoma ( AIDS NHL ) comprises a diverse and heterogeneous group of high-grade B cell tumors .
aids-related non-hodgkin's lymphoma ( aids nhl ) comprises a diverse and heterogeneous group of high-grade b cell tumors .
B-other_name I-other_name I-other_name O B-other_name I-other_name O O O O O O O O B-tissue I-tissue I-tissue I-tissue O