Exacerbations among chronic bronchitis patients treated with maintenance medications from a US managed care population: an administrative claims data analysis
2019 ◽
Vol 123
(5)
◽
pp. S42-S43
2009 ◽
Vol 65
(10)
◽
pp. 2077-2087
◽
2008 ◽
Vol 101
(1)
◽
pp. 23-29
◽
2020 ◽