RT Journal
A1 Torpy JM, Livingston EH
T1 ENergy drinks
JF JAMA
JO JAMA
YR 2013
FD January 16
VO 309
IS 3
SP 297
OP 297
DO 10.1001/jama.2012.170614
UL http://dx.doi.org/10.1001/jama.2012.170614
AB 
Energy drinks are marketed in different serving sizes and have varying amounts of caffeine. Sodas (also known as pop, colas, or soft drinks) may contain sugar and caffeine, although most sodas contain less caffeine than energy drinks on an ounce-by-ounce basis. As a comparison, an 8-oz cup of coffee has about 100 mg of caffeine (see table). The January 16, 2013, issue of JAMA contains 2 articles discussing the harms associated with energy drinks.