Trying to define the optimal progesterone elevation cut-off in fresh in vitro fertilization cycles: time to evolve our way of thinking


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Volume 110, Issue 4, Pages 634–635


Christos A. Venetis, M.D., Ph.D., Basil C. Tarlatzis, M.D., Ph.D.


Reflections on "Defining thresholds for abnormal premature progesterone levels during ovarian stimulation for assisted reproduction technologies" by Hill et al.

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Fertility and Sterility

Editorial Office, American Society for Reproductive Medicine

Fertility and Sterility® is an international journal for obstetricians, gynecologists, reproductive endocrinologists, urologists, basic scientists and others who treat and investigate problems of infertility and human reproductive disorders. The journal publishes juried original scientific articles in clinical and laboratory research relevant to reproductive endocrinology, urology, andrology, physiology, immunology, genetics, contraception, and menopause. Fertility and Sterility® encourages and supports meaningful basic and clinical research, and facilitates and promotes excellence in professional education, in the field of reproductive medicine.