antigenic characteristics of human keratinocytes ( hk ) were studied in positive intracutaneous tests for delayed-type hypersensitivity in vivo using murine monoclonal antibodies against human okm5 , okm1 , okt6 , leu-7 and hla-dr antigens and compared with those of negative skin reactions .
C0086418
human
C0019764
hla-dr antigens