The accurate diagnosis of grand microvascular imaging in differentiating benign and malignant thyroid nodules: A meta-analysis Literature searchSearched CBM databases, Google Scholar, Cochrane Library, PubMed, and Web Science. These ensuing key-phrases and MeSH terms are engaged: ["thyroid cancer" or "thyroid tumor" or "thyroid tumor" or "thyroid nodule"] and ["excellent microvascular imaging"]. We checked the relevant content, read the bibliography of papers published in