🌐EnglishEnglishEspañolFrançaisTiếng ViệtTürkçeالعربية中文EntityQ582189· pop 7· linked from 68 articleschronic mountain sicknessdisease in which the proportion of blood volume that is occupied by red blood cells increases and there is an abnormally low level of oxygen in the bloodConnectionsradiation burnDiseasemotion sicknessEntityCategoriesEffects of external causesMountaineering and health