Oral Cholic Acid in Zellweger Spectrum Disorders: A Word of Caution. Issue 2 (February 2018) - Klouwer, Femke C.C.; Braverman, Nancy E.; Verkade, Henkjan J.; Berendse, Kevin; Waterham, Hans R.; Wanders, Ronald J.A.; Poll-The, Bwee Tien; Koot, Bart G.P.