Disease Encyclopedia.
| Reference Sources : | Product | |
|---|---|---|
| Adam.com Inc. | 4 | Medical Encyclopedias |
| American Association of Family Practitioners | 7 | Familydoctor.org |
| eCureme.com Inc. | 3 | Color Atlas of Medical Diseases |
| Elsevier:Harcourt:Mosby | Medical Encyclopedia | |
| Healthanswers Inc. | 5 | Healthanswers.com |
| Healthgate | 8 | Healthgate |
| Thomson-Gale Group | 12 | Gale Encyclopedia of Medicine |
| Thomson-Healthwise | Micromedex + Healthwise | |
| Healthwise | 13 | Healthwise |
| Mayo Clinic Foundation for Medical Research | 1 | MayoClinic.com |
| MacMillan-Holzbrook Group | Encyclopedia of Life Sciences | |
| McKesson Health Solutions LLC | 10 | Health Advisor |
| MedicineNet Inc. | 2 | MedicineNet |
| Medimedia | 9 | Healthink.com |
| MediResource | 6 | MediResource.com |
| Non-profit Organizations | 11 | NORD, Others |