== Mistake or omission under symptoms == 

 Under the symptoms section, high altitude is defined as between 2500 and 3500 metres, and extreme altitude as above 5800 metres. There is no categorization of symptoms between 3500 and 5800 metres. Without being facetious, I will just say that a mistake has obviously been made by the author of this section. This is a strange section in which to find such inadequate editing - it seems like such an important yet simple topic to research and write about. Cockups should be saved for the humanities.