|The California Twin Program is a non-profit effort conducted at the University of Southern California to collect the basic characteristics of all twins born in California regardless of where they are living currently. Click on the left to learn about the nature and goals of the program and who is eligible to participate.|
|Here we describe why a twin program is important and why it
should be conducted in California.
|This letter summarizes the history and goals of the program.
|This describes the information that is required for participation in the program.|
|Some of the characteristics of native California twins as a group are presented, including details about their zygosity, their geographical distribution and family origins, and their education and occupational similarity. At this site we will periodically provide some figures about different lifestyle practices, medical conditions, and rates of health care utilization among different kinds of twins in California.|
|About Twins|| Answers to the most common questions asked about
|The world wide web abounds with interesting information about twins. Here are some sites that we have found. If you have a twins-related website that you would like us to add to the list, go here and submit the site you have found.|