The devices and methods disclosed herein may also have significant advantages in terms of {HEAD ~ the flexibility} of {TAIL ~ the mode} of delivery 
The devices and methods disclosed herein may also have significant advantages in terms of { HEAD ~ the flexibility } of { TAIL ~ the mode } of delivery
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH