External sources partly read by Petra 1
External sources yet to be included
- MedScape
- WebMD
- WHO
- UptoDate
- ClinicalKey
- MedicineNet
- American Medical Association
- National health Services (NHS) UK
- National Institutes Of Health (NIH) US
- NICE Guidelines National institute for health and care excellence UK
- Epocrats
- National Organization for Rare Disorders (NORD)’s Rare Disease Database