1.  Both are characterised by a focal or multifocal pattern of distribution, abnormal cellular proliferation, and a genetic component.

2.  Finding a remedy May be easier because there is less of a genetic component.

3.  Genetic evidence A number of studies have now firmly established the existence of a genetic component in the transmission of schizophrenia.

4.  The same study finds a genetic component to the susceptibility to nicotine addiction, too.

5.  The unusual geographical distribution is equally compatible with a genetic component.

6.  Greene has been studying the genetic component of throat cancer.

7.  Considerable evidence has accumulated that there is a genetic component to bipolar depressive disorder, that is, where both manic and depressive episodes occur.

8.  A number of studies have now firmly established the existence of a genetic component in the transmission of schizophrenia.