61In that regard, an answer in the affirmative to those questions could be necessary where, first, those decisions do not allow the court with jurisdiction to give full effect to the rules of Directive 93/13 by setting aside, where necessary of its own motion, any conflicting provision of national legislation, even one adopted subsequently, including any conflicting judicial practice, without it being necessary for that court to request or await the prior setting aside of such a provision by legislative or other constitutional means, and, secondly, the possibility to make a reference for a preliminary ruling to the Court would be inhibited (see, to that effect, judgment of 5 April 2016, PFE, C‑689/13, EU:C:2016:199, paragraphs 34, 40 and 41 and the case-law cited).
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