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. 2022 Apr 5;22(7):2782. doi: 10.3390/s22072782

Figure 4.

Figure 4

Figure 4

Disturbed sleep pattern of CPAP users during the Ramadan period (arrows). Volitional awakenings, to pray, are observed (A). CPAP data are collected from Resmed (A) and Philips (B) devices. EPR: expiratory pressure relief.