P1566: PROTON PUMP INHIBITION FOR SECONDARY HEMOCHROMATOSIS IN HEREDITARY ANEMIA, A PHASE III PLACEBO-CONTROLLED RANDOMIZED CROSS-OVER CLINICAL TRIAL. (23rd June 2022) - Van Vuren, A.; Kerkhoffs, J.; Schols, S.; Rijneveld, A.; Nur, E.; Peereboom, D.; Gandon, Y.; Welsing, P.; van Wijk, R.; Schutgens, R.; van Solinge, W.; Marx, J.; et al.