195 Impact of elexacaftor/tezacaftor/ivacaftor on serum markers of fat-soluble vitamin levels in people with cystic fibrosis. - Hergenroeder, G.; Faino, A.; Bridges, G.; Bartlett, L.; McNamara, S.; Strub, B.; Nichols, D.; Ramos, K. (Journal of Cystic Fibrosis, 2022)