1. Relationship between sleep and secretion of gonadotropin and ovarian hormones in women with normal cycles 
Sandrine Touzet, M.D., Muriel Rabilloud, M.D., Ph.D., Hans Boehringer, Ph.D., Enriqueta Barranco, M.D., Ph.D., René Ecochard, M.D., Ph.D. 
Fertility and Sterility 
Volume 77, Issue 4, Pages (April 2002)
DOI: /S (01)03254-X

2. FIGURE 1
Mean levels of FSH, LH, estrone-3-glucuronide (E1-3-G), and pregnanediol-3-alpha-glucuronide (Pd-3α-G) in normally cycling women with short (<8 h, dotted line) or long (≥8 h, dashed line) sleep duration. Hormonal concentrations are log scaled.
Touzet. Sleep and women’s reproductive hormones. Fertil Steril 2002.
Fertility and Sterility  , DOI: ( /S (01)03254-X)