National Library of Medicine - Includes the synonyms of multiple pterygium syndrome, a summary and the major features. www.nlm.nih.gov/mesh/jablonski/syndromes/syndrome471.html
NORD - Popliteal Pterygium Syndrome - Offers synonyms, a general discussion and further resources. www.stepstn.com/cgi-win/nord.exe?proc=Redirect&type=rdb_sum&id=1069.htm
