Cost-effectiveness analysis of three different combinations of inhalers for severe and very severe chronic obstructive pulmonary disease patients at a tertiary care teaching hospit... von Altaf, Mohammed, Zubedi, Ayesha Mubeen, Nazneen, Fareesa, Kareemulla, Shaik, Ali, Syed Amir, Aleemuddin, N M, Hannan Hazari, Md Abdul

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