ICHD classification and diagnosis of migraine are further subdivided. Overall ICHD-3 beta distinguishes 29 migraine subtypes. The following table outlines the main subtypes and their ICHD-1, -2, -3 beta and ICD-10 codes. Migraine without aura also referred to as a "common migraine", (previously known as "hemicrania simplex") is a specific neurological disorder characterized by recurrent, throbbing headaches that often affect one side of the head (i.e., it is unilateral), are of at least moderate intensity, and may cause nausea, phonophobia or photophobia. One defining characteristic of the common migraine is a lack of the visual disturbances known as an aura. The exact International Classification of Headache
Affliction (Star Trek: Enterprise) horror, K'Vagh kills an infected Klingon so that an autopsy can be performed. Phlox determines that the victim's DNA has been supplemented with that of a genetically augmented human. Phlox also learns from Antaak that they experimented with augmented DNA after the events seen in "", but it self-mutated and escaped. Antaak and Phlox are told that they have five days to cure the outbreak before it is too late. Antaak suggests that the only course of action is to create stable augmented Klingons, but Phlox refuses to assist further. The storyline in "Affliction" answers an ongoing question which had