3 ms·
There is a clear and robust genetic factor, demonstrated in twin studies. http://www.els.net/WileyCDA/ElsArticle/refId-a0005230.html http://www.els.net/WileyCD
by canjobear 8y ago
There is a clear and robust genetic factor, demonstrated in twin studies.
http://www.els.net/WileyCDA/ElsArticle/refId-a0005230.html http://www.els.net/WileyCDA/ElsArticle/refId-a0005230.html
Not that genetics are the only factor.