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diagnosis

Judged: two independent readers; copy check clear.

circulating levels

circulating levels In this diagnostic research context, circulating levels means the measured amount of a biological substance, such as GDNF, present in the body’s circulation so it can be compared between groups and studied as a possible biomarker.

In this diagnostic research context, circulating levels means the measured amount of a biological substance, such as GDNF, present in the body’s circulation so it can be compared between groups and studied as a possible biomarker.