234In that regard, it should be noted that, according to the case-law relating to the principle of sound administration, where the EU institutions have a broad discretion, respect for the safeguards established by the EU legal order in administrative procedures is of even more fundamental importance. Those guarantees include, in particular, the duty of care, that is, the duty of the competent institution to examine carefully and impartially all the relevant aspects of the individual case (judgments of 21 November 1991, Technische Universität München, C‑269/90, EU:C:1991:438, paragraph 14; of 27 September 2012, Applied Microengineering v Commission, T‑387/09, EU:T:2012:501, paragraph 76; and of 16 September 2013, ATC and Others v Commission, T‑333/10, EU:T:2013:451, paragraph 84).