【医】MHC限制,主要组织相容性抗原复合物限制

restriction crop restriction restriction amplifier credit restriction restriction crack restriction characteristic frequency restriction crossing restriction restriction loss quota restriction unitary restriction interest restriction MHC restriction MHC mhc MHC class MHC MHC associative recognition MHC MHC polymorphism MHC MHC antigen MHC gene MHC polymorphism MHC molecules MHC class