PNAS – Proceedings of the National Academy of Sciences of the United States of America
http://www.pnas.org/content/early/
[Accessed 7 Mar 2020]

Chromosome-free bacterial cells are safe and programmable platforms for synthetic biology
Catherine Fan, Paul A. Davison, Robert Habgood, Hong Zeng, Christoph M. Decker, Manuela Gesell Salazar, Khemmathin Lueangwattanapong, Helen E. Townley, Aidong Yang, Ian P. Thompson, Hua Ye, Zhanfeng Cui, Frank Schmidt, C. Neil Hunter, and Wei E. Huang
PNAS first published March 6, 2020. https://doi.org/10.1073/pnas.1918859117