61 As to the remainder, in so far as the arguments set out in paragraphs 50 to 52 of the present judgment allege an error of law with regard to the assessment of the question whether MasterCard is an association of undertakings, it should be noted that, contrary to the Commission’s contention, the appellants are not, in essence, merely challenging the assessment of the facts made at first instance, but are relying, for the main part, on questions of law which are admissible at the appeal stage.
La duración de la aclimatación dependerá de la especie de ensayo seleccionada y de su procedencia: se recomienda un mínimo de # días para los perros y los cerdos criados con ese propósito en un animalario del laboratorio, y de dos semanas si proceden de una fuente exteriorEurLex-2 EurLex-2