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Zygotic-splitting rates after single-embryo transfers in in vitro fertilization.
To the Editor: The mechanism of spontaneous monozygotic twinning is unknown. However, on the basis of observations first made 15 years ago, it is now generally accepted that all forms of assistedExpand
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The vanishing twin: a review.
This article reviews the scientific literature discussing the vanishing twin phenomenon. Information pertaining to frequency, aetiology, and potential complications, as well as the impact ofExpand
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Zygotic splitting after assisted reproduction.
To the Editor: It is unknown why monozygotic twins are more frequent in conceptions brought about by assisted-reproduction techniques.1–4 One hypothesis is that the exposure of the zona pellucida toExpand
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The contribution of singletons, twins and triplets to low birth weight, infant mortality and handicap in the United States.
Among multiple gestations the magnitude of neonatal mortality, morbidity and postneonatal handicap is unknown. Although the proportion of multiple births has risen dramatically during the pastExpand
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The Fitz-Hugh-Curtis syndrome revisited. Changing perspectives after half a century.
The Fitz-Hugh-Curtis syndrome is an extrapelvic manifestation of pelvic inflammatory disease. Classically it consists of adhesions between the liver capsule and the diaphragm or the anteriorExpand
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An atlas of multiple pregnancy : biology and pathology
Forewords. Preface. Part I - General aspects. Part II - Practical aspects. Part III - Lives of some twins and their parents. Selected bibliography. Part IV - Multiple pregnancy illustrated. Index.
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Zygosity testing. Current status and evolving issues.
This paper reviews the current status and evolving issues in the field of zygosity testing. Monozygotic twins are seldom absolutely identical. Traditional methods of zygosity testing, mathematicalExpand
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Neonatal mortality rates among growth-discordant twins, classified according to the birth weight of the smaller twin.
OBJECTIVE The purpose of this study was to evaluate neonatal mortality rates among discordant twins, classified according to the birth weight of the smaller twin. STUDY DESIGN We compared neonatalExpand
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Multiple gestation: reflections on epidemiology, causes, and consequences.
Multiple births (of all orders) increased in epidemic proportions in the years 1971-1997. Twins increased 53%, 32%, 31%, and 83% in white, Afro-American, Native American and Mexican American women,Expand
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The ideal twin pregnancy: patterns of weight gain, discordancy, and length of gestation.
OBJECTIVE Our purpose was to evaluate factors associated with the best intrauterine growth and lowest morbidity among twins ("ideal twin pregnancy"). STUDY DESIGN A historic prospective study ofExpand
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