To the Editor: Dr Adashi and Senator Wyden (D-OR) commented on the Centers for Disease Control and Prevention's (CDC's) National Assisted Reproductive Technology Surveillance System (NASS).1 The Society for Assisted Reproductive Technology started collecting assisted reproductive technology (ART) data from member-clinics in 1986; the CDC has been collecting detailed information on all ART procedures performed annually in the United States since 1995 and has been monitoring ART effectiveness and safety.
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