Speech Difficulties in Down Syndrome. Down syndrome (DS) is an incurable genetic disorder that has a profound impact upon a personâs physical, mental, and social development. Children with DS have anatomical and physiological differences in the mouth and throat region that affect feeding, swallowing, and oral motor skills.
1 A gross refers to a group of 144 items (a dozen dozen or a square dozen).  A great gross refers to a group of 1728 items (a dozen gross or a cubic dozen).
In other words, 100 Gross Rating Points is the mathematical equivalent of reaching 100 percent of the population of a trade area, 1 time each. Or 50 percent of the population twice. Or 25 percent of the population 4 times. Or 10 percent of the population 10 times. Or 1 percent of the population 100 times.