Media type: E-Article Title: Liquid biopsy assessment of synchronous malignancies: a case report and review of the literature Contributor: Liebs, Sandra; Nonnenmacher, Anika; Klauschen, Frederick; Keilholz, Ulrich; Vecchione, Loredana imprint: Elsevier BV, 2019 Published in: ESMO Open Language: English DOI: 10.1136/esmoopen-2019-000528 ISSN: 2059-7029 Keywords: Cancer Research ; Oncology Origination: Footnote: Access State: Open Access