Sites:
National Library of Medicine: Pallister-Hall syndrome, its synonyms, a summary and a list of major features.NORD: Pallister Hall Syndrome: Offers the synonyms, a general discussion and further resources.
Pallister-Hall Syndrome: A Layman's Guide: For PHS patients, their care givers, and medical practitioners.
Yahoo! Groups : Pallister-Hall Syndrome: Details and instructions for joining, posting and reading the mail for this email support group.