what are the two ways an antigen can get to a lymph node for activation of T cells 2. what is the role of perforin in the killing of target cells by CTL?what are the two ways an antigen can get to a lymph node for activation of T cells 2. what is the role of perforin in the killing of target cells by CTL?
what are the two ways an antigen can get to a lymph node for activation of T cells 2. what is the role of perforin in the killing of target cells by CTL?