In other words, will {TAIL ~ the therapeutic index} of {HEAD ~ an antibody} be enhanced by providing a particular isotype or class? 
In other words , will { TAIL ~ the therapeutic index } of { HEAD ~ an antibody } be enhanced by providing a particular isotype or class ?
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH