In the case of Gauchers disease {HEAD ~ the enzyme} is {TAIL ~ human glucocerebrosidase} , or modifications thereof, such as alglucerase or ceredase and cerezyme 
is
In the case of Gauchers disease { HEAD ~ the enzyme } is { TAIL ~ human glucocerebrosidase } , or modifications thereof , such as alglucerase or ceredase and cerezyme
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH