bone marrow cells were characterized prior to soft agar culture by one of two methods : ( 1 ) standard erythrocyte ( e ) and erythrocyte-antibody-complement ( eac ) rosetting , or ( 2 ) by the human t- and b-cell surface markers , leu 1 and hla-dr , using the fluorescence-activated cell sorter .
C0086418
human
C0019764
hla-dr