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. 2020 Jul 13;2:100012. doi: 10.1016/j.sleepx.2020.100012

Fig. 1.

Fig. 1

Sculpture titled “Undine Rising from the Waters” (1880) by Chauncey Bradley (1849–1917) [28] [from: https://artgallery.yale.edu/collections/objects/2729. Accessed March 4, 2019, with permission of Yale University Art Gallery].