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- Supplementary methods -
The Volume-Viscosity Swallow Test
The videofluoroscopic study - Figure S1 - The Penetration-Aspiration scale. At the left, picture A) shows a safe swallow (level 1), picture B) shows a penetration that not reach the vocal folds (levels 2-3), picture C) shows a penetration that reach the vocal folds (levels 4-5) and picture D) shows an aspiration (levels 6-8). At the right, timelines of a safe swallow (A), and delayed swallows, leading to a penetration (white dot, B, C and D) and to an aspiration (red dot, D).
- Supplementary methods -