Twins Isabel Stenzel Byrnes and Anabel Stenzel have fought long odds since their birth 37 years ago. As infants, they were diagnosed with cystic fibrosis (CF), a genetically transmitted disease that causes a dysfunction of cells in the lungs so disruptive they clog with mucous, making every breath a struggle and infection a constant worry. In that era, doctors told parents that children with CF would likely not live through elementary school. 続きは下記のURLから:http://stanfordhospital.org/newsEvents/newsletters/healthnotes/lungtransplantation.html