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| Observation of Clinical Effect, Safety and Prognosis of Doxofylline Combined with Cefmetazole in the Treatment of Patients with Chronic Obstructive Pulmonary Disease Complicated with Infection |
| LIU Lanhua |
| First-author's address: Leping People's Hospital, Jiangxi Province, Leping 333300, China |
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Received: 26 September 2022
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