Molecular Genetics of The Gracile Syndrome - Very detailed information in the form of a dissertation by Ilona Visapää. - http://www.ktl.fi/attachments/suomi/julkaisut/julkaisusarja_a/2002a28.pdf
Online Mendelian Inheritance in Man - Details the state of knowledge of the genetics of Gracile Syndrome. - http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=603358