Im obviously new to the site but if I could make a suggestion. There are a great deal of people on this site doing research etc who do not understand the concept of cc/ml and basic injection principles etc. There is great info at many of your local colleges and universities in their bookstores. Especially the colleges with nursing/pharmacology programs. They have manuals for 20 dollars or less (usually) that show you how to inject, where to inject and why, how many cc's sites can take, how to draw up, do basic pharmacological math, and with great pictures to boot. Hope this helps someone out!![]()