Observational study of organisational responses of 17 US hospitals over the first year of the COVID-19 pandemic oleh Lauren Southerland, Amy Wilson, Esther K Choo, Aditya Mahadevan, Matthew Strehlow, Christian Schulz, Danielle M McCarthy, Evrim Oral, Marina Del Rios, Stephen Lim, Madhav KC, Srihari V Chari, Ruth Pobee, Andrew Nugent, Christian Hext, Sarah Newhall, Diana Ko, Joshua J Baugh, David Callaway, Mucio Kit Delgado, Zoe Glick, Christian J Graulty, Nicholas Hall, Abdusebur Jemal, Milap Mehta, Andrew C Meltzer, Dar'ya Pozhidayeva, Daniel Resnick-Ault, Sam Shen, Daniel Du Pont