| 1. | The Center for Study of Multiple Birth | | | Recognized internationally as a unique resource for research and information about the causes, effects and problems of multifetal pregnancy.
www.multiplebirth.com |
| 2. | Millennium Twins | | | A longitudinal sociological study of twins born in the new millennium.
www.millennium-twins.de |
| 4. | Twin Research | | | Newsletter, research information, survey.
www.twin-research.com |
| 6. | Australian Twin Registry | | | Includes a newsletter, registry for twins, study information and conferences.
www.twins.org.au |
| 7. | Twin Studies | | | From the Institute of Behavioral Genetics at the University of Colorado. A handful of studies for twins of all ages.
ibgwww.colorado.edu |
| 8. | Twin Research | | | Journal of the International Society for Twin Studies. Topics covered in the journal include behavioral genetics, complex diseases, endocrinology, fetal pathology and other areas of research.
www.australianacademicpress.com.au |
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