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. 2021 Jul 24;22:485. doi: 10.1186/s13063-021-05399-y

Fig. 3.

Fig. 3

Details of measurements, and time points of data collection. EA, electroacupuncture; SZRD, Suanzaoren decoction; PSQI, Pittsburgh Sleep Quality Index; PSG, polysomnography; ISI, Insomnia Severity Index; NIHSS, National Institutes of Health Stroke Scale; HADS, Hospital Anxiety and Depression Scale; MRI, brain magnetic resonance imaging; fMRI, functional magnetic resonance imaging; MLT, nocturnal concentration of melatonin