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. 2017 May 31;8:347. doi: 10.3389/fphys.2017.00347

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Copyright © 2017 De Smet, van Herpt, D'Hulst, Van Thienen, Van Leemputte and Hespel.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Relationship between changes in serum erythropoietin concentration and changes in hemoglobin mass during “living high.” ΔHbmass, change in total blood hemoglobin mass; ΔsEPO, mean increase in serum erythropoietin concentration during 5 weeks of normobaric hypoxia with simulated altitude gradually increasing from 2,000 to 3,250 m of simulated altitude.