Does ovulation affect performance in tennis players?
Machiko Otaka, Shu-Man Chen, Yong Zhu, Yung-Shen Tsai, Ching-Yu Tseng, Donovan L Fogt, Boon-Hooi Lim, Chih-Yang Huang, Chia-Hua Kuo
BMJ Open Sport & Exercise Medicine Jan 2018, 4 (1) e000305; DOI: 10.1136/bmjsem-2017-000305