preferred_name: T cell activation via T cell receptor contact with antigen bound to MHC molecule on antigen presenting cell
preferred_name_lc: t cell activation via t cell receptor contact with antigen bound to mhc molecule on antigen presenting cell
label: T lymphocyte activation via T cell receptor contact with antigen bound to MHC molecule on antigen presenting cell
label_lc: t lymphocyte activation via t cell receptor contact with antigen bound to mhc molecule on antigen presenting cell