Question: Is this describing a (1) directly correlative relationship, (2) conditionally causative relationship, (3) causative relationship, or (0) no relationship.

ARFI elastography shows excellent correlation with AST/ALT ratios in  obese children and may be used as a noninvasive tool to detect nonalcoholic fatty liver disease (NAFLD) and associated hepatic changes, especially in pediatric patients, for whom liver biopsy is not always feasible.
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This is a conditionally causative relationship
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