The Multiple Births Foundation
Hammersmith House Level 4
Queen Charlotte’s and Chelsea Hospital
Du Can Road
London W12 OHS UK
+44 (020) 8383-3519
fax +44 (020) 8383-3041

The Twins Foundation

A membership organization that serves twins, their families, the media, medical and social scientists and the general public through its publications, its National Twin Registry and its multi-media resource center.
The Twins Foundation
PO Box 6043
Providence, RI 02940-6043
(401) 729-1000
fax (business hours only) (401) 751-4642