PB1977: SPECTRUM OF INFECTIOUS COMPLICATIONS FOLLOWING TRANSPLANTATION OF AUTOLOGOUS BLOOD STEM CELLS IN PATIENTS WITH MULTIPLE MYELOMA - A. Abakumova; L. Mendeleeva; G. Klyasova; M. Solovev; M. Firsova; E. Makunina; E. Mamaeva; A. Startsev (HemaSphere, 2022)