{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,10,29]],"date-time":"2023-10-29T10:20:44Z","timestamp":1698574844840},"reference-count":46,"publisher":"Cambridge University Press (CUP)","issue":"2","license":[{"start":{"date-parts":[[2014,8,1]],"date-time":"2014-08-01T00:00:00Z","timestamp":1406851200000},"content-version":"unspecified","delay-in-days":9984,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Acta genet. med. gemellol.: twin res."],"published-print":{"date-parts":[[1987,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Monochorionic twins may differ from dichorionic monozygotic (MZ) twins because of the transfusion syndrome and the timing of the cleavage of the zygote. Intrapair birthweight differences may be an indicator of these intrauterine variables. Previous evidence concerning weight differences and intellectual ability in MZ twins is reviewed with recommendations that future research also incorporates full placental data. Poorer scores on a nonverbal test are found for the lighter male twin of pairs with large intrapair differences in birthweight. Co-twin concordance rates for test scores are also highest for this group indicating that they vary consistently from other groups. Some evidence is presented from the present and earlier studies implicating anomalies of asymmetry or the transfusion syndrome as possible causes of these differences in brain functioning. The study adds further doubts as to the validity of any assumption of developmental equivalence between MZ twins and the general population.<\/jats:p>","DOI":"10.1017\/s0001566000004414","type":"journal-article","created":{"date-parts":[[2016,7,27]],"date-time":"2016-07-27T09:59:28Z","timestamp":1469613568000},"page":"181-196","source":"Crossref","is-referenced-by-count":18,"title":["Birthweight Differences, The Transfusion Syndrome and The Cognitive Development of Monozygotic Twins"],"prefix":"10.1017","volume":"36","author":[{"given":"P.J.","family":"O'Brien","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"D.A.","family":"Hay","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"56","published-online":{"date-parts":[[2014,8,1]]},"reference":[{"key":"S0001566000004414_ref005","doi-asserted-by":"publisher","DOI":"10.1007\/BF01066337"},{"key":"S0001566000004414_ref028","doi-asserted-by":"publisher","DOI":"10.1111\/j.2044-8295.1982.tb01833.x"},{"key":"S0001566000004414_ref014","doi-asserted-by":"crossref","first-page":"229","DOI":"10.1177\/003591576806100314","article-title":"The Birmingham Twin Survey","volume":"61","author":"Cameron","year":"1968","journal-title":"Proc Roy Soc Med"},{"key":"S0001566000004414_ref017","doi-asserted-by":"publisher","DOI":"10.1111\/j.1469-1809.1972.tb00580.x"},{"key":"S0001566000004414_ref018","first-page":"9","volume-title":"Twin Research: Biology and Epidemiology","author":"Corney","year":"1978"},{"key":"S0001566000004414_ref011","volume-title":"The Biology of Twinning in Man","author":"Bulmer","year":"1970"},{"key":"S0001566000004414_ref009","first-page":"155","volume-title":"Twin Research 3. Part A","author":"Boklage","year":"1981"},{"key":"S0001566000004414_ref012","doi-asserted-by":"publisher","DOI":"10.1016\/0378-3782(77)90014-7"},{"key":"S0001566000004414_ref024","doi-asserted-by":"crossref","first-page":"884","DOI":"10.1542\/peds.53.6.884","article-title":"Mental and motor development in MZ co-twins with dissimilar birth-weights","volume":"53","author":"Fujikura","year":"1974","journal-title":"Pediatrics"},{"key":"S0001566000004414_ref033","first-page":"135","volume-title":"In Obstetrics and Gynaecology Annual","author":"MacGillivray","year":"1978"},{"key":"S0001566000004414_ref040","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-3476(65)80125-1"},{"key":"S0001566000004414_ref027","doi-asserted-by":"publisher","DOI":"10.2307\/1129694"},{"key":"S0001566000004414_ref004","doi-asserted-by":"publisher","DOI":"10.1056\/NEJM197311012891803"},{"key":"S0001566000004414_ref043","volume-title":"Neuropsychology of lefthandedness","author":"Springer","year":"1980"},{"key":"S0001566000004414_ref020","doi-asserted-by":"publisher","DOI":"10.1016\/S0031-3955(16)32372-0"},{"key":"S0001566000004414_ref034","doi-asserted-by":"publisher","DOI":"10.1111\/j.2044-8295.1980.tb02730.x"},{"key":"S0001566000004414_ref006","first-page":"309","article-title":"Examination of the placenta - accurate recording of twin placentation - a plea to the obstetrician","volume":"18","author":"Benirschke","year":"1961","journal-title":"Obstet Gynecol"},{"key":"S0001566000004414_ref001","doi-asserted-by":"publisher","DOI":"10.1177\/000992286700600711"},{"key":"S0001566000004414_ref026","first-page":"235","volume-title":"Twin research 3. Part B","author":"Hay","year":"1981"},{"key":"S0001566000004414_ref025","doi-asserted-by":"publisher","DOI":"10.2466\/pms.1980.51.2.666"},{"key":"S0001566000004414_ref016","doi-asserted-by":"publisher","DOI":"10.1017\/S0001566000009326"},{"key":"S0001566000004414_ref041","first-page":"37","volume-title":"Twin Research 3. Part B","author":"Rose","year":"1981"},{"key":"S0001566000004414_ref015","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.15.4.341"},{"key":"S0001566000004414_ref031","doi-asserted-by":"crossref","first-page":"332","DOI":"10.1056\/NEJM196908072810627","article-title":"Erratum","volume":"281","author":"Kaebler","year":"1969","journal-title":"New Engl J Med"},{"key":"S0001566000004414_ref039","first-page":"293","article-title":"Primary biases in twin studies: A review of prenatal and natal difference-producing factors in monozygotic pairs","volume":"2","author":"Price","year":"1950","journal-title":"Am J Hum Genet"},{"key":"S0001566000004414_ref007","doi-asserted-by":"crossref","DOI":"10.1007\/978-1-4612-9809-0","volume-title":"The Pathology of the Human Placenta","author":"Benirschke","year":"1967"},{"key":"S0001566000004414_ref036","doi-asserted-by":"publisher","DOI":"10.1111\/j.1469-1809.1977.tb00195.x"},{"key":"S0001566000004414_ref029","doi-asserted-by":"publisher","DOI":"10.1111\/j.1469-1809.1978.tb00646.x"},{"key":"S0001566000004414_ref003","first-page":"327","article-title":"Growth and development of twins dissimilar in size at birth","volume":"33","author":"Babson","year":"1964","journal-title":"Pediatrics"},{"key":"S0001566000004414_ref010","volume-title":"Placentation effects on birth-weight and IQ in MZ twins","author":"Brown","year":"1977"},{"key":"S0001566000004414_ref030","doi-asserted-by":"crossref","first-page":"1030","DOI":"10.1056\/NEJM196905082801902","article-title":"Influence of intrauterine relations on the intelligence of the twins","volume":"280","author":"Kaebler","year":"1969","journal-title":"New Engl J Med"},{"key":"S0001566000004414_ref023","first-page":"34","article-title":"Twin placentation and zygosity","volume":"37","author":"Fujikura","year":"1970","journal-title":"Obstet Gynecol"},{"key":"S0001566000004414_ref044","volume-title":"The Placenta in Twin Pregnancy","author":"Strong","year":"1967"},{"key":"S0001566000004414_ref045","first-page":"145","volume-title":"Twin Research 3: Psychology and Methodology","author":"Welch","year":"1978"},{"key":"S0001566000004414_ref021","volume-title":"The effect of the feto-fetal transfusion syndrome in monozygotic twins on later physical and mental development","author":"Foley","year":"1983"},{"key":"S0001566000004414_ref042","doi-asserted-by":"publisher","DOI":"10.1080\/19485565.1969.9987828"},{"key":"S0001566000004414_ref035","first-page":"425","article-title":"The effect of chorion type on variation in IQ in the NCPP twin population","volume":"30","author":"Melnick","year":"1978","journal-title":"Am J Hum Genet"},{"key":"S0001566000004414_ref013","volume-title":"The Nature and Nurture of Twins","author":"Bryan","year":"1983"},{"key":"S0001566000004414_ref019","doi-asserted-by":"publisher","DOI":"10.1017\/S0001566000008916"},{"key":"S0001566000004414_ref046","doi-asserted-by":"publisher","DOI":"10.1017\/S0001566000007583"},{"key":"S0001566000004414_ref008","doi-asserted-by":"publisher","DOI":"10.1056\/NEJM197306212882505"},{"key":"S0001566000004414_ref038","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9378(63)90050-4"},{"key":"S0001566000004414_ref022","first-page":"717","article-title":"Relative birthweight in twins","volume":"49","author":"Friedman","year":"1977","journal-title":"Obstet Gynecol"},{"key":"S0001566000004414_ref037","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.1969.tb06160.x"},{"key":"S0001566000004414_ref002","doi-asserted-by":"publisher","DOI":"10.1159\/000240099"},{"key":"S0001566000004414_ref032","volume-title":"Human Multiple Reproduction","author":"MacGillivray","year":"1975"}],"container-title":["Acta geneticae medicae et gemellologiae: twin research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0001566000004414","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,8,19]],"date-time":"2023-08-19T10:40:59Z","timestamp":1692441659000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0001566000004414\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1987,4]]},"references-count":46,"journal-issue":{"issue":"2","published-print":{"date-parts":[[1987,4]]}},"alternative-id":["S0001566000004414"],"URL":"https:\/\/doi.org\/10.1017\/s0001566000004414","relation":{},"ISSN":["0001-5660","2059-6324"],"issn-type":[{"value":"0001-5660","type":"print"},{"value":"2059-6324","type":"electronic"}],"subject":[],"published":{"date-parts":[[1987,4]]}}}