Impact of newly diagnosed extramedullary myeloma on outcome after first autograft followed by maintenance: A CMWP‐EBMT study. - Gagelmann, Nico; Eikema, Dirk‐Jan; Koster, Linda; Netelenbos, Tanja; McDonald, Andrew; Stoppa, Anne‐Marie; Fenk, Roland; Anagnostopoulos, Achilles; van Gorkom, Gwendolyn; Deconinck, Eric; Bulabois, Claude‐Eric; Delforge, Michel; et al. (European Journal of Haematology, 2023)