4P- Support Group, Inc.
USA-based non-profit association of families of children with 4p-, offering phone support, newsletters, national biannual gathering and regional meetings.
GeneReviews: Wolf-Hirschhorn Syndrome
Summary, diagnosis, clinical description, differential diagnosis, management, genetic counseling and molecular genetics.
Online Mendelian Inheritance in Man
Features a list of reported case studies and symptoms, genetic information, and important references.
Orphanet: Wolf-Hirschhorn Syndrome
Provides information on this genetic disorder including the diagnostic criteria, differential diagnosis, clinical description, management and etiology.
eMedicine - Wolf-Hirschhorn Syndrome
Detailed information on differential diagnosis, genetics, likely clinical history, and symptoms.