開發奈米金與侵入式耦合連結偵測技術以定量循環腫瘤DNA中TP53基因突變作為食道癌個人化病情監測之臨床檢測平台=Development of a Nanogold and Invasion Coupled Ligation Detection Technology for Quantification of Tp53 Gene Mutation in Circulating Tumor Dna as a Clinical Test Platform for Personalized Disease Monitoring in Esophageal Cancer