P644: THE LIFE EXPECTANCY OF PATIENTS WITH HAIRY CELL LEUKEMIA VERGES UPON THE LIFE EXPECTANCY OF THE GENERAL POPULATION: A POPULATION-BASED STUDY IN THE NETHERLANDS. (23rd June 2022) - Dinmohamed, A.; Maas, C.; Visser, O.; Doorduijn, J.; Mous, R.; Raymakers, R.; Kater, A.; Posthuma, W.