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.
The main food sources of dairy include milk, yoghurt, soft cheeses, hard cheese, butter, whey protein, cream, condensed milk and powered milk products. Dairy is a nutrient-dense food that can be very beneficial to health. On the other hand it is one of the foods that people are commonly sensitive to and can contribute to a number of health concerns. The inclusion of dairy in the diet needs to be based on how each individual reacts to the consumption of dairy.