http://www.orpha.net/consor/cgi-bin/OC_Exp.php?Lng=FR&Expert=157855 2011 France scientific and technical information syndrome retinitis pigmentosa abetalipoproteinemia hypoprebetalipoproteinemia, acanthocytosis, retinitis pigmentosa, and pallidal degeneration hypolipoproteinemias hypoprebetalipoproteinemia