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Strength of recommendation grading.
| Strength of recommendation | Definition |
|---|---|
| Strong (A) | Recommendation based on consistent and good quality patient-oriented evidence. |
| Weak (B) | Recommendation based on inconsistent or limited quality patient-oriented evidence. |
| Good practice points (C) | Recommendation based on consensus, usual practice, expert opinion, disease-oriented evidence, and case series for studies of diagnosis, treatment, prevention, or screening. |
