We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.
To save content items to your account,
please confirm that you agree to abide by our usage policies.
If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account.
Find out more about saving content to .
To save content items to your Kindle, first ensure coreplatform@cambridge.org
is added to your Approved Personal Document E-mail List under your Personal Document Settings
on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part
of your Kindle email address below.
Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations.
‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi.
‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
The rate of structural malformations in monozygotic twins is higher than in dizygotic twins or singletons. The mechanical process of the embryo splitting may precipitate structural abnormalities leading to this higher incidence. Despite being genetically identical, monozygotic twins can be discordant for structural abnormality. Among the most common structural malformations in twin pregnancies are cardiac anomalies, neural tube and brain malformations, gastrointestinal and abdominal wall defects. Congenital heart disease is more prevalent in monochorionic twins, a proportion of which is caused in response to the abnormal physiology of twin-twin transfusion syndrome. First trimester ultrasound can identify those twin pregnancies at a higher risk of structural malformations and therefore lead to earlier detailed anatomy ultrasound and earlier prenatal diagnosis.
Recommend this
Email your librarian or administrator to recommend adding this to your organisation's collection.