00408nas a2200157   4500000000100000000000100001008004100002100001700043700001000060700001000070700001600080245012300096300001100219490000600230022001400236       2014                            d1 aH. Mullerova1 aC. Lu1 aH. Li1 aM. Tabberer00aPrevalence and burden of breathlessness in patients with chronic obstructive pulmonary disease managed in primary care  ae855400 v9  a1932-6203