[X]Exposure to high and low air pressure and changes in air pressure, occurrence at school, other institution and public administrative area
[x]exposure to high and low air pressure and changes in air pressure, occurrence at school, other institution and public administrative area
[X]Exposure to high and low air pressure and changes in air pressure, occurrence at school, other institution and public administrative area
[x]exposure to high and low air pressure and changes in air pressure, occurrence at school, other institution and public administrative area