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Twin registries use a number of strategies to try to reduce the risk of recruitment bias. Some twin registries are "mandatory" - that is, for example, under the public health laws of Norway, all births of twins since 1967 have been recorded in a twin registry maintained by the Norwegian government. [4]
The Vietnam Era Twin Registry (abbreviated VET Registry) is a twin registry containing 7,369 male-male twin pairs who served in the United States Armed Forces during the Vietnam War (defined as the period from 1964 to 1975). As of 2013, it is one of the largest national adult twin samples in the United States. [1]
MTFS is a twin study established in June 1989 with 1300 same-gendered twin pairs age 11 or 17, with an additional cohort of 500 such pairs recruited around 2004. Twins were born between 1972 and 2000. [1] All twins born in Minnesota at that time were eligible to participate using birth registry data.
Triplet and higher multiple births nosedive. In 2004, of the people younger than 35 who gave birth with the help of IVF, 32.7% delivered twins, and 4.9% delivered triplets, according to doctors at ...
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CHICAGO (AP) — Twin brothers have sued the NCAA in federal court, alleging they were ruled ineligible because of compensation they received for use of their name, image and likeness while they ...
The Library of Congress added 25 films to its National Film Registry this year, including "Star Trek II: The Wrath of Khan," "Spy Kids" and "The Social Network."