Exclusion criteria:
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1) Patients who have undergone operations that affect lung function, such as lung transplantation, lung resection, lung volume reduction, etc;
2) Dependent on mechanical ventilation to maintain lung function, such as ventilator;
3) Combined with chronic lung diseases that affect lung function, such as severe chronic obstructive pulmonary disease;
4) Patients with heart function related diseases, such as heart failure and pacemaker installation;
5) Severe underlying diseases affecting survival, including uncontrolled heart, kidney, digestive, blood diseases, neuropsychiatric diseases, immune diseases, metabolic diseases, malignant tumors, severe malnutrition, etc;
6) Resting heart rate > 120 / min;
7) Systolic blood pressure > 180mmhg, diastolic blood pressure > 100mmhg;
8) Unstable angina pectoris or myocardial infarction in recent 1 month;
9) Severe obesity (BMI > 30 kg / m2);
10) Allergic constitution, allergic to the drug components involved in the treatment program;
11) Pregnant or lactating women;
12) Disabled people who can't complete the collection of efficacy evaluation indicators;
13) Mental state can not cooperate, suffering from mental illness, no self-control, can not express clearly;
14) Participants in other clinical trials;
15) According to the judgment of the researchers, there will be patients with complications or poor compliance that affect the efficacy and safety evaluation.
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