. . . . . . . . . . . . "[Except for the first enzyme of the pathway, delta-aminolevulinate synthase (ALAS), deficiencies in seven other enzymes are associated with the various forms of porphyria (Fig.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2014-02-25"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2014-10-02T12:35:33+02:00"^^ . . . . . . . . . . . "v2.1.0.0" . "v2.1.0" .