42It is for the national court to verify, in accordance with the rules of evidence of national law, provided the effectiveness of EU law is not undermined, whether the factors constituting an abusive practice are present in the case before it (see judgments of 14 December 2000 in Emsland-Stärke, C‑110/99, EU:C:2000:695, paragraph 54; of 21 July 2005 in Eichsfelder Schlachtbetrieb, C‑515/03, EU:C:2005:491, paragraph 40; of 21 February 2006 in Halifax and Others, C‑255/02, EU:C:2006:121, paragraph 76; and of 13 March 2014 in SICES and Others, C‑155/13, EU:C:2014:145, paragraph 34).
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