TY - JOUR T1 - “Liquid biopsy” for cancer screening JO - BMJ UR - https://doi.org/10.1136/bmj.m4933 PY - 2021/01/04 AU - Bradley SH AU - Barclay ME ED - DO - DOI: 10.1136/bmj.m4933 PB - BMJ SP - m4933 EP - m4933 Y2 - 2024/12/22 ER -