APA (7th ed.) Citation

Druml, C. (2009). Stem cell research: Toward greater unity in Europe? Cell, 139(4), 649. https://doi.org/10.1016/j.cell.2009.10.043

Chicago Style (17th ed.) Citation

Druml, Christiane. "Stem Cell Research: Toward Greater Unity in Europe?" Cell 139, no. 4 (2009): 649. https://doi.org/10.1016/j.cell.2009.10.043.

MLA (9th ed.) Citation

Druml, Christiane. "Stem Cell Research: Toward Greater Unity in Europe?" Cell, vol. 139, no. 4, 2009, p. 649, https://doi.org/10.1016/j.cell.2009.10.043.