Ding, Xiao-Han Acute Mountain Sickness Is Associated With a High Ratio of Endogenous Testosterone to Estradiol After High-Altitude Exposure at 3,700 m in Young Chinese Men. [electronic resource] - Frontiers in physiology 2018 - 1949 p. digital Publication Type: Journal Article ISSN: 1664-042X Standard No.: 10.3389/fphys.2018.01949 doi