When a baby is born prematurely, he is especially susceptible to a breathing difficulty that develops into hyaline membrane disease.
On it is the grunting cough of a child with hyaline membrane disease, a frequently fatal condition that occurs in premature infants.
The hyaline membrane disease that kills at least 25,000 infants every year (among them: Patrick Bouvier Kennedy) and the heart attacks that are fatal to 500,000 adult Americans .