Expression of {HEAD ~ the effector gene results} in {TAIL ~ expression} of a cell surface antigen that can be used to deplete the undifferentiated cells 
in
Expression of { HEAD ~ the effector gene results } in { TAIL ~ expression } of a cell surface antigen that can be used to deplete the undifferentiated cells
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH