Wu, Nandan Tetramethylpyrazine-mediated regulation of CXCR4 in retinoblastoma is sensitive to cell density. [electronic resource] - Molecular medicine reports May 2017 - 2481-2488 p. digital Publication Type: Journal Article ISSN: 1791-3004 Standard No.: 10.3892/mmr.2017.6293 doi Subjects--Topical Terms: AdolescentAdultAnimalsCell Line, TumorChildFemaleHumansMaleMiddle AgedNeoplasm Proteins--biosynthesisPyrazines--pharmacologyRatsReceptors, CXCR4--biosynthesisRetinoblastoma--drug therapy