A prevalent neglect of environmental control in mammalian cell culture calls for best practices

We thank members of the Li laboratory for helpful discussions, and J. Xu and M. K. Y. Sicat for administrative support. We also thank members of the Izpisua Belmonte laboratory for their critical feedback on early versions of the manuscript. This work was supported by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under award number OSR-2017-CRG-3412. Work in the Izpisua Belmonte laboratory was supported by The Moxie Foundation. The King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) supported the research of the Li laboratory, under award numbers BAS/1/1080-01 and URF/1/3412-01-01. KAUST supported the contribution of the Duarte laboratory through baseline funding to C.M.D.