Steen, A., Luthman, H., Hellgren, D., & Lambert, B. (1990). Levels of hypoxanthine phosphoribosyltransferase RNA in human cells. EXPERIMENTAL CELL RESEARCH, 186(2), 236-244. https://doi.org/10.1016/0014-4827(90)90301-P
Chicago Style (17th ed.) CitationSteen, Ann-Marie, Holger Luthman, Dennis Hellgren, and Bo Lambert. "Levels of Hypoxanthine Phosphoribosyltransferase RNA in Human Cells." EXPERIMENTAL CELL RESEARCH 186, no. 2 (1990): 236-244. https://doi.org/10.1016/0014-4827(90)90301-P.
MLA (9th ed.) CitationSteen, Ann-Marie, et al. "Levels of Hypoxanthine Phosphoribosyltransferase RNA in Human Cells." EXPERIMENTAL CELL RESEARCH, vol. 186, no. 2, 1990, pp. 236-244, https://doi.org/10.1016/0014-4827(90)90301-P.
Warning: These citations may not always be 100% accurate.