Variation on the Valsalva maneuver.
Schnur
W
W
D000399:Air Pressure; D003679:Deglutition / Q000502:physiology*; D005064:Eustachian Tube / Q000502:physiology* / Q000503:physiopathology; D006801:Humans; D014636:Valsalva Maneuver / Q000502:physiology*