| Cluster A personality disorders |
A grouping of personality disorders that share traits of odd behaviors and social isolation. This group of diagnoses includes paranoid, schizoid, and schizotypal personality disorders.
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| Cluster B personality disorders |
A grouping of personality disorders that share traits of attention seeking, highly excitable emotional states, and unpredictable behavior. This group includes antisocial, borderline, narcissistic, and histrionic p
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| Cluster C personality disorders |
A group of personality disorders that have anxious and fearful behaviors as prominent features. This group includes dependent, avoidant, and obsessive-compulsive personality disorders.
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| cluster a. |
in epidemiology, statistical techniques used to analyze observations that are clustered in subgroups.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| cluster h. |
a headache, possibly a type of migraine, characterized by attacks of unilateral excruciating pain over the eye and forehead, with temperature elevation, lacrimation, and rhinorrhea; attacks last from 15 minutes to about an hour and tend to occur in clusters, sometimes a few times a day for two to eight weeks followed by months or years without occurrence. Because attacks identical to the spontaneous attacks may be induced in sufferers by subcutaneous injection of histamine diphosphate, it is also known as histamine cephalalgia or h. See also chronic paroxysmal hemicrania, under hemicrania. Called also Horton's disease or syndrome, migrainous neuralgia, and vasomotor h.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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