| p-c-d.org | Primary Ciliary Dyskinesia |
| jewishgeneticscenter.org | The Center For Jewish Genetics Disorders |
| kumc.edu | Genetic and Rare Conditions |
| immd.de | IMMD Institute of Medical Molecular Diagnostics Ltd. |
| drgreene.com | Dr. Greene's HouseCalls: Trisomy 13 |
| ctds.info | Genetic Disorders: The Links to Diet |
| camp-a-roo.com | The Udgd Spot - Undiagnosed Genetic Disorders |
| virgin.net | Bpes Family Network |
| nih.gov | National Institutes of Health |
| newscientist.com | New Scientist: Heroin Addiction Gene Identified and Blocked |
| genetests.org | www.genetests.org/ |
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