DOI:
10.1055/s-00028422
Ultrasound International Open
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References
Brozek JL, Akl EA, Compalati E, Kreis J, Terracciano L, Fiocchi A, Ueffing E. et al.
Grading quality of evidence and strength of recommendations in clinical practice guidelines part 3 of 3. The GRADE approach to developing recommendations.
Allergy 2011;
66: 588-595
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