Otolaryngologists and ENT physicians are the same. ENT=Ears, Nose, and Throat - Oto=ear, laryng=throat (the nose, or rhino, was dropped some years ago). Otolaryngologists go through 1 year of general surgery training and an additional 4-5 years of specialty head and neck surgery.
But many popular brands actually contain considerably less than an old-fashioned cup of black coffee. An 8.4-ounce serving of Red Bull, for instance, has a relatively modest 76 to 80 mg of caffeine, compared to the 95 to 200 mg in a typical cup of coffee, the Mayo Clinic reports.
An 8-ounce cup of brewed coffee contains between 95 and 200 milligrams of caffeine, while an 8-ounce cup of instant coffee ranges from 27 to 173 milligrams. Single-serve varieties of brewed coffee contain 75 to 150 milligrams, while specialty drinks such as lattes contain between 63 and 175 milligrams.