88It should also be recalled that the requirement of impartiality to which the Community institutions are subject also extends to experts consulted in that regard. In particular, where an expert is requested to give an opinion on the effects of a potential medicinal product, it is necessary for that expert to perform his task impartially (see, to that effect and by analogy, Case T-70/99Alpharma v Council [2002] ECR II-3495, paragraphs 172, 183 and 211).