A fax in 1989 changed the direction of Dr. Mike Welsh's research into cystic fibrosis. Francis Collins and Lap-Chee Tsui, and their teams had discovered three missing letters in the DNA of a group of people with CF. Armed with the knowledge of how cystic fibrosis created problems in the lungs of patients, his team started decades of work to try and fix it. Tap the link in our bio for the next installment of Miracle of Breath. #cysticfibrosis #medicalresearch #iowa #universityofiowa