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Paper published by Dr Umair Gauhar:
Original Research
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Sequential comparison of tiotropium to high-dose ipratropium in patients with chronic obstructive pulmonary disease in a practice setting
Umair Gauhar, Mark Dransfield, J Allen D Cooper
International Journal of Chronic Obstructive Pulmonary Disease 2009, 4:391-395
Published Date: 14 October 2009