As all physicians who prescribe controlled substances know, North Carolina has a system, the Controlled Substance Reporting System (CSRS) that allows pharmacists to report prescription drug activity and physicians to check patient records and history of prescription drug usage before prescribing controlled substances. Here is a short, one-page summary of everything physicians should know about the system, written by North Carolina Medical Society (NCMS) summer intern, Evan Anderson, a rising senior at NC State University. Read the summary here.