Application of circulating tumor DNA liquid biopsy in nasopharyngeal carcinoma: A case report and review of literature

Table 1 Minimal residual disease detection methods based on circulating tumor DNA

MRD detection methods based on ctDNA and their advantages and disadvantages	Ref.
PCR-based	[28]
Hybridization capture-based NGS	[29]
PCR amplicon-based NGS	[30]
whole-genome sequencing	[31]

PCR: Polymerase chain reaction; NGS: Next-generation sequencing; MRD: Minimal residual disease; ctDNA: Circulating tumor DNA.