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Visual representation of the 3-P model for insomnia (after Spielman, 1987). [12] |
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| Part of: Georgiev T, Draganova A, Avramov K, Terziyski K (2025) Chronic insomnia – beyond the symptom of insufficient sleep. Folia Medica 67(3): e151493. https://doi.org/10.3897/folmed.67.e151493 |