Imagine having a child that had to have his chest "gently pounded" on everyday in order to survive. Imagine having to do this through the cries and pleads from your child "please mommy not today". Yes this may sound terrible and even painful, but it is required to keep the child alive. Actually this is the every day routine for a parent of a child with . See without this daily "pounding" on the child's chest his or her lungs would fill up with mucus and that child would die. , scientifically known as mucoviscidosis, is one of the ....