How is "Some States expressed concern at possible uneven treatment of countries in the reporting procedure, not only in terms of content but also procedure." said in French?

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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Certains États se sont inquiétés du risque de traitement inégal des pays lors de la procédure de présentation des rapports, non seulement quant au contenu mais aussi quant à la procédure proprement dite.