Update README.md

README.md

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 # New_Haven_Sewage
-Additional analyses of coronavirus in Sewage in New Haven for Peccia et al
+Additional analyses of coronavirus in Sewage in New Haven for Peccia et al, published in Nature Biotechnology: https://www.nature.com/articles/s41587-020-0684-z
 
 These are additional analyses of data examining increases in SARS-CoV-2 RNA concentrations in primary sewage sludge in 
-relation to COVID-19 hospitalizations and cases. The original preprint, led by Jordan Peccia, et al can be found here: 
-https://www.medrxiv.org/content/10.1101/2020.05.19.20105999v1 
-The original pre-print included a correlation of smoothed versions of the viral RNA data 
+relation to COVID-19 hospitalizations and cases. The original pre-print ( 
+https://www.medrxiv.org/content/10.1101/2020.05.19.20105999v1)  included a correlation of smoothed versions of the viral RNA data 
 and the epidemiological indicators. In the analyses presented here, we use an error-in-variables 
 time series model to get an estimate of the underlying viral dynamics in sewage and the relationship of this with hospitalizations. 
 This analysis is carried out in the Bayesian framework, allowing us to correctly quantify uncertainty in the estimated associations.