CDMA (Code Division Multiple Access) and GSM (Global System for Mobiles) are shorthand for the two major radio systems used in cell phones. Both acronyms tend to group together a bunch of technologies run by the same entities. In this story, I'll try to explain who uses which technology and what the real differences are.
Dairy. Dairy products provide nutrients that are critical for bone health, including calcium, potassium and vitamin D. Dairy is also a source of protein. The benefit dairy provides for bones makes consumption especially critical for growing children, whose bone mass is developing.
Nutrients to be aware of. The main nutrients that must be emphasized are; protein, iron, calcium, zinc, riboflavin, and vitamin B12. Lacto/ovo diets provide protein by means of milk and egg white. On a vegan diet, protein needs must be met by legumes (nuts, peas, lentils, beans, etc).