Antonio Viruez-SotoMónica Marlene López-DávalosGabriel Rada-BarreraAlfredo Merino‐LunaDaniel Molano-FrancoAmílcar Tinoco-SolorozanoNatalia Zubieta-DeUriosteGustavo Zubieta‐CallejaChristian Arias‐ReyesJorge Soliz2026-03-222026-03-22202110.1016/j.resp.2021.103709https://doi.org/10.1016/j.resp.2021.103709https://andeanlibrary.org/handle/123456789/45299Citaciones: 27enErythropoietinMedicineIntensive care unitMechanical ventilationHemoglobinNitric oxideGastroenterologyInternal medicineRespiratory systemAnemiaLow serum erythropoietin levels are associated with fatal COVID-19 cases at 4,150 meters above sea levelarticle