Research Article

[Retracted] Clinical Application Effect of Cluster Management in Noninvasive Ventilator Nursing Care of Patients with Severe Heart Failure

Figure 2

Symptom improvement of two groups of patients. (a) Resolution time of dyspnea in two groups. (b) Resolution time of insomnia in two groups. (c) Resolution time of nausea in two groups. (d) Resolution time of upper abdominal pain in two groups. Note: . The data between groups were analyzed by the independent samples test.
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