منابع مشابه
The National Merit Twin Studyl
This chapter will be concerned with some of the methodological problems and some early results of the National Merit Twin Study which is still in progress and when finished will be reported in detail elsewhere. Analyses completed so far have been primarily concerned with the relative effects of heredity and environment on ability measures, which will therefore be the major focus of this chapter...
متن کاملCohort Profile: The National Academy of Sciences-National Research Council Twin Registry (NAS-NRC Twin Registry).
The National Academy of Sciences-National Research Council Twin Registry (NAS-NRC Twin Registry) is a comprehensive registry of White male twin pairs born in the USA between 1917 and 1927, both of the twins having served in the military. The purpose was medical research and ultimately improved clinical care. The cohort was assembled in the early 1960s with identification of approximately 16,000...
متن کاملThe Chinese National Twin Registry: an update.
The Chinese National Twin Registry (CNTR), established in 2001, is the first and largest population-based twin registry in China. Based on the CNTR, a new twin cohort was recruited from 2011 to study the relationship between environmental risk factors and chronic diseases. So far, 33,874 twin pairs from nine provinces have been recruited, in which hundreds of disease-discordant twin pairs and e...
متن کاملMinnesota Twin Family Study.
The Minnesota Twin Family Study is a longitudinal study of 11-year-old and 17-year-old twins and their parents designed to examine factors related to the etiology of substance abuse and related problems. At study intake, the twins and their parents participate in a day-long assessment in our laboratory that includes measures of endophenotypes (e.g., event-related potentials, EEG, autonomic nerv...
متن کاملMigraine and risk of stroke: a national population-based twin study.
Numerous studies have indicated an increased risk for stroke in patients with migraine, especially migraine with aura; however, many studies used self-reported migraine and only a few controlled for familial factors. We aimed to investigate migraine as a risk factor for stroke in a Swedish population-based twin cohort, and whether familial factors contribute to an increased risk. The study popu...
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ژورنال
عنوان ژورنال: BMJ
سال: 2008
ISSN: 0959-8138,1756-1833
DOI: 10.1136/bmj.39514.423090.80