J CoudertM Paz-ZamoraG AntezanaEnrique VargasL. Brian�on2026-03-222026-03-22201510.1159/000398183https://doi.org/10.1159/000398183https://andeanlibrary.org/handle/123456789/81891enHyperoxiaHypoxia (environmental)Duration (music)Circulation (fluid dynamics)Internal medicineCardiologyMedicineEffects of Hypoxia and Hyperoxia of Short Duration on the Pulmonary Circulation of Highlanders (HL) and Lowlanders (LL) Living at 3,750 mbook-chapter