Defining the “sweet spot” for administered luteinizing hormone-to-follicle-stimulating hormone gonadotropin ratios during ovarian stimulation to protect against a clinically significant late follicular increase in progesterone: an analysis of 10,280 first in vitro fertilization cycles.

Werner, M D, Forman, EJ, Hong, KH, Franasiak, J M, Molinaro, T A, Scott, R T,
Fertil Steril. 2014 doi: