Dinucleotides and {TAIL ~ their use} as {HEAD ~ modulators} of mucociliary clearance and ciliary beat frequency 
Dinucleotides and { TAIL ~ their use } as { HEAD ~ modulators } of mucociliary clearance and ciliary beat frequency
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH