Dehydration is how you define it: comparison of 318 blood and urine athlete spot checks
Tamara D Hew-Butler, Christopher Eskin, Jordan Bickham, Mario Rusnak, Melissa VanderMeulen
BMJ Open Sport & Exercise Medicine Feb 2018, 4 (1) e000297; DOI: 10.1136/bmjsem-2017-000297
