| 2. | How Stuff Works | | | Illustrated narrative describing an assortment of testing decisions. www.howstuffworks.com |
| 4. | fFN Test | | | Offers information about premature labor and using the fetal fibronection test to assess the risk of premature delivery. preterm-labor.ffntest.com |
| 7. | Mother and Child | | | Discusses purpose and procedure of chorionic villus sampling. Includes list of advantages and disadvantages compared to amniocentesis. www.hon.ch |
| 8. | Health Library | | | Overview of Chorionic Villi Sampling. Includes preparation, risks and affects. www.laurushealth.com |
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