An object of the present invention is therefore to provide {TAIL ~ novel compounds} having {HEAD ~ an affinity} for the lungs 
An object of the present invention is therefore to provide { TAIL ~ novel compounds } having { HEAD ~ an affinity } for the lungs
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH