R Fenk, M Ak, G Kobbe, U Steidl, C Arnold, M Korthals, A Hunerliturkoglu, UP Rohr, S Kliszewski, A Bernhardt, R Haas, and R Kronenwett. 2004. “Levels of Minimal Residual Disease Detected by Quantitative Molecular Monitoring Herald Relapse in Patients With Multiple Myeloma”. Haematologica 89 (5). Pavia, Italy, 557-66. https://doi.org/10.3324/%x.