Outside Neurons/Inside Epithelia: Novel Activation of CFTR Cl? and HCO3 ? Conductances -- Role of CFTR and Other Ion Channels in Cystic Fibrosis -- Ion Channels in the Apical Membrane: Role of Electrical Coupling on Transepithelial Transport -- Ion Channels in Secretory Granules of the Pancreas: Molecular Identification and Their Role in Regulated Secretion -- Epithelial Transport and Intracell…