Mild pulmonary, but severe hepatic disease in a cystic fibrosis patient homozygous for a frameshift mutation in the regulatory domain of the CFTR. Issue 5 (May 1993) - Lissens, W; Desmyttere, S; Bonduelle, M; Dab, I; Liebaers, I; Mercier, B; Audrezet, M P; Ferec, C