. . . . . . . . . . . . "[However, until the recent description of the constitutively activating V617F point mutation of the Janus 2 tyrosine kinase (JAK2)--a high-frequency molecular marker that is extremely specific for clonal chronic myeloproliferative disorders--distinction of PV from secondary erythrocytosis or other conditions has often been difficult.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2016-02-19"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2016-05-13T12:45:58+02:00"^^ . . . . . . . . . . . "v4.0.0.0" . "v4.0.0" .