  urlLink The New York Times > Health > The Heart's Desire : "According to national data, a woman under age 35 has a 35 percent chance of having a baby after a single in vitro fertilization attempt with her own newly fertilized eggs. The odds drop off steeply with age, however; for a woman aged 38 to 40 the chance is 20 percent, and for a woman aged 41 to 42 it is 10 percent.
Fertility experts say that patients today arrive at their clinics fully aware of the statistics and the medical possibilities. Many have been to other clinics and, having failed to become pregnant, are seeking a new start. Most scoured the Internet, and many joined support groups where they learned about methods that leading fertility centers say are useless and even dangerous. 'They know the basic workups and options,' said Dr. Mark V. Sauer of the College of Physicians and Surgeons at Columbia.
'They even talk about specific ovulation-induction products, endometrial thickness measurements, whether the Doppler flow studies were adequate. 'They want to know the specific scores of their embryos in cultures,' Dr. Sauer said. 'I've had patients break down and cry over their embryo scores. '" 
