The first step laboratory test when there is a clinical suspicious toward<unk>  dorsalis is a  venereal disease research laboratory test (VDRL)  or rapid plasma reagin (RPR). Fluorescent treponemal antibody absorbed (FTA-ABS) test is the gold standard test for the diagnosis of<unk>  dorsalis.
Tabes Dorsalis diagnostic study of choice
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Tabes Dorsalis risk factors
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