twins linus, left, and maarten have more sweat glands and tooth precursors than their older brother joshua, 5, after being treated with a drug in utero..
mar - ????? .
it causes stroke and dementia as well as mood disturbance. svd increases with age but is accelerated by hypertension and diabetes..
then, corinna and tobias found out that she was pregnant again -- with twin boys. doctors confirmed that the twins carried the affected gene..

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