PB2194: HIGHER JAK2 ALLELE BURDEN IN PATIENTS WITH CHRONIC MYELOPROLIFERATIVE NEOPLASMS IS ASSOCIATED WITH HIGHER PREVALENCE OF CHRONIC KIDNEY DISEASE AND UNFAVORABLE DYNAMICS OF KIDNEY FUNCTION OVER TIME - Marko Lucijanic; Petra Veic; Ivona Aric; Katarina Tupek; Ena Soric; Anica Sabljic; Josipa Vlasac Glasnovic; Tajana Stoos-Veic; Ivan Krecak; Rajko Kušec (HemaSphere, 2023)