| <em>Infertility Most experts define infertility as not being able to get pregnant after at least one year of trying. Women who are able to get pregnant but then have repeat ... http://www.womenshealth.gov/faq/infertility.htm
| MedlinePlus: <em>Infertility The primary NIH organization for research on Infertility is the National Institute of Child ... Infertility(National Women's Health Information Center) ... http://www.nlm.nih.gov/medlineplus/infertility.html
| MedlinePlus Medical Encyclopedia: <em>Infertility Primary infertility is the term used to describe a couple that has never been able to achieve a pregnancy after at least 1 year of unprotected sex. ... http://www.nlm.nih.gov/medlineplus/ency/article/001191.htm
| <em>Infertility</em> - MayoClinic.com Infertility — Comprehensive overview covers causes, treatment for both men and women with fertility problems. http://www.mayoclinic.com/health/infertility/DS00310
| <em>Infertility</em>: Causes - MayoClinic.com The cause or causes of infertility can involve one or both partners. ... The most common causes of male infertility include abnormal sperm production or ... http://www.mayoclinic.com/health/infertility/DS00310/DSECTION=causes
| <em>Infertility</em> Tests-Overview What are infertility tests?Infertility tests are done to help find out why a woman cannot become pregnant. The tests help find whether the problem is with ... http://www.webmd.com/infertility-and-reproduction/tc/infertility-tests-overview
| <em>Infertility Infertility is the inability of a couple to become pregnant (regardless of cause) ... Infertility affects about 6.1 million people in the United States, ... http://www.emedicinehealth.com/infertility/article_em.htm
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