DOI:
10.1055/s-00028422
Ultrasound International Open
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References
Qaseem A, Forland F, Macbeth F, Ollenschlager G, Phillips S, van der Wees P. Board of Trustees of the Guidelines International N.
Guidelines International Network: toward international standards for clinical practice guidelines.
Ann Intern Med 2012;
156: 525-531
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