AUTHOR=Hopker James , Schumacher Yorck O. , Fedoruk Matthew , Mørkeberg Jakob , Bermon Stéphane , Iljukov Sergei , Aikin Reid , Sottas Pierre-Edouard TITLE=Athlete Performance Monitoring in Anti-Doping JOURNAL=Frontiers in Physiology VOLUME=9 YEAR=2018 URL=https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2018.00232 DOI=10.3389/fphys.2018.00232 ISSN=1664-042X