34According to the case-law, the concept of ‘disability’ within the meaning of that directive has to be understood as referring to a limitation that results in particular from long-term physical, mental or psychological impairments, which, in interaction with various barriers, may hinder the full and effective participation of the person concerned in professional life on an equal basis with other workers (see, to that effect, judgments of 11 April 2013, HK Danmark, C‑335/11 and C‑337/11, EU:C:2013:222, paragraph 38, and of 11 September 2019, Nobel Plastiques Ibérica, C‑397/18, EU:C:2019:703, paragraph 41).