P1325: ACCURACY OF CRYOTUBE METHOD TO ASSESS PRETHAWING RICHNESS OF CRYOPRESERVED CD34+ HEMATOPOIETIC STEM CELLS FOR AUTOLOGOUS TRANSPLANTATION - D. Belloumi; I. Ben Yaiche; J. Fekih; A. Ghorbel; L. Torjemane; M. Chaabane; S. Mekni; N. Ben Abdeljelil; I. Turki; S. Ladeb; S. Hmida; T. Ben Othman (HemaSphere, 2022)