English to Russian Medical Medical: Pharmaceuticals

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A review of the literature and toxicological databases were conducted to identify the availability of Ames mutation assay data.
In addition, the structures of the analytes were assessed for mutagenic potential using 2 in silico methodologies: an expert rule-based system and a statistical system.

Немного сомневаюсь в переводе "expert rule-based system".

Спасибо.