Retraction notices

Usefulness of assessment of circulating tumor DNA(ctDNA) of cerebrospinal fluid(CSF) samples for early detection of brain metastasis (BrM) in patients with triple-negative breast cancer (TNBC)

Type
Expression of concern
Notice date
6/16/2021 0:00
Journal
Journal of Clinical Oncology : Official Journal of the American Society of Clinical Oncology
Publisher
American Society of Clinical Oncology
Notice DOI
10.1200/jco.2021.39.15_suppl.507
Original paper DOI
10.1200/jco.2021.39.15_suppl.507

Reasons