Bronchodilator Activity of (3R)-3[[[ (3-fluorophenyl) [(3,4,5trifluorophenyl)methyl]amino] oxy]carbonyl]-1-[2-oxo-2-(2-thienyl)ethyl]-1-azoniabicyclo[2.2.2]octane bromide (CHF5407) a Potent, Long-Acting and Selective Muscarinic M3 Receptor Antagonist.