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.
After vitamin B12, the group of nutrients most likely to be deficient in a vegetarian meal plan are protein, vitamins B3 and B6, zinc, and selenium. For some practical suggestions here, let's take each of these nutrients in order. Protein: We've got to give a special nod to soybeans here.