Correction: Spontaneous ovulation, hormonal profiles, and the impact of progesterone timing variation on outcomes in natural proliferative phase frozen embryo transfer cycles with single euploid blastocyst transfer.

Ting-Chi Huang, William Hao-Yu Lee, Mei-Zen Huang, Kuan-Hao Tsui, Chuang-Yen Huang, Gwo-Jang Wu, Mei-Jou Chen, Jehn-Hsiahn Yang, Shee-Uan Chen, Jiann-Loung Hwang, Fung-Wei Chang