_:vb50936905 . _:vb50936905 "url:http://en.wikipedia.org/wiki/Barth_syndrome"^^ . _:vb50936905 "url:http://www.rarediseases.org/rare-disease-information/rare-diseases/byID/1116/viewAbstract"^^ . _:vb50936905 . _:vb50936905 . _:vb50936905 "url:http://rarediseases.info.nih.gov/gard/5890/barth-syndrome/resources/1"^^ . _:vb50936905 . _:vb50936905 . _:vb50936905 . _:vb50936905 "url:http://www.ninds.nih.gov/disorders/barth/barth.htm"^^ . _:vb50936905 "A lipid metabolism disorder that has_material_basis_in X-linked inheritance of the tafazzin gene and is characterized by decreased production of an enzyme required to produce cardiolipin."^^ .