The temporal changes of estradiol levels in 19 women undergoing ovulation induction for in vitro fertilization (IVF) and embryo replacement were described by a mathematical model. The model was analyzed for differences between treatment cycles of an individual woman and between cycles of different women. This model was also used to evaluate the results of IVF treatment. The variation between cycles within individuals was found to be less than that between different women. The parameters that describe this model were found to correlate with follicular growth but not with number of oocytes retrieved, fertilized or cleaved.

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http://dx.doi.org/10.1159/000293554DOI Listing

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