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In page Assisted reproductive technology:

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Another way to look at costs is to determine the expected cost of establishing a pregnancy. Thus, if a clomiphene treatment has a chance to establish a pregnancy in 8% of cycles and costs $820, the expected cost is $9,900 to establish a pregnancy, compared to an IVF cycle (cycle fecundity 40%) with a corresponding expected cost of $49,500 ($19,800 × 40%).[citation needed]