nih-gov/www.ncbi.nlm.nih.gov/stat?jsdisabled=true&ncbi_db=books&ncbi_pdid=book-fig&ncbi_acc=NBK1127&ncbi_domain=gene&ncbi_report=objectonly&ncbi_type=figure&ncbi_objectid=clcn7.F2&ncbi_pcid=%2FNBK1127%2Ffigure%2Fclcn7.F2%2F?report=objectonly&nc