1. Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, Texas, United States
2. Department of Sports, Food and Natural Science, Western Norway University of Applied Sciences, Bergen, Norway
3. Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, Yale University, New Haven, Connecticut, United States
4. John B. Pierce Laboratory, Yale University, New Haven, Connecticut, United States