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Recently, some single-institution studies have reported risk factors of CLNM in cN0 PTC patients, but results from those studies are not consistent. The meta-analysis aimed to identify some risk factors that can be predictive of CLNM in cN0 PTC patients.We performed a systematic search for relevant literature published prior to December 2015 using the following search engines: PubMed, EMBASE, Ovid...
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