Blood-derived cell-free DNA is a superior biomarker for noninvasive DNA methylation profiling in multiple myeloma - Robbe Heestermans; Catharina Olsen; Shervine Ameli; Jana Succari; Toon Janssen; Wouter De Brouwer; Ann De Becker; Isabelle Vande Broek; Marleen Bakkus; Rik Schots; Elke De Bruyne; Ivan Van Riet (Blood Advances)