The relationship between hemoglobin and V˙O2max: A systematic review and meta-analysis. - Webb, Kevin L.; Gorman, Ellen K.; Morkeberg, Olaf H.; Klassen, Stephen A.; Regimbal, Riley J.; Wiggins, Chad C.; Joyner, Michael J.; Hammer, Shane M.; Senefeld, Jonathon W. (PLoS ONE, 2023)