APA (7th ed.) Citation

Guzman-Ayala, M., Lee, K. L., Mavrakis, K. J., Goggolidou, P., Norris, D. P., & Episkopou, V. (2009). Graded Smad2/3 Activation Is Converted Directly into Levels of Target Gene Expression in Embryonic Stem Cells. PLoS ONE, 4(1), 1. https://doi.org/10.1371/journal.pone.0004268

Chicago Style (17th ed.) Citation

Guzman-Ayala, Marcela, Kian Leong Lee, Konstantinos J. Mavrakis, Paraskevi Goggolidou, Dominic P. Norris, and Vasso Episkopou. "Graded Smad2/3 Activation Is Converted Directly into Levels of Target Gene Expression in Embryonic Stem Cells." PLoS ONE 4, no. 1 (2009): 1. https://doi.org/10.1371/journal.pone.0004268.

MLA (9th ed.) Citation

Guzman-Ayala, Marcela, et al. "Graded Smad2/3 Activation Is Converted Directly into Levels of Target Gene Expression in Embryonic Stem Cells." PLoS ONE, vol. 4, no. 1, 2009, p. 1, https://doi.org/10.1371/journal.pone.0004268.