62Next, although the complexity of an aid measure is one of the circumstances specific to a case which are capable of justifying the long duration of the preliminary examination phase (see, by analogy, judgment of 13 June 2013, HGA and Others v Commission, C‑630/11 P to C‑633/11 P, EU:C:2013:387, paragraphs 82 and 83), such complexity does not mean, as the Advocate General noted, in essence, in point 117 of his Opinion, that the Commission must, in any event, initiate the formal investigation procedure.
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