[BlackAdderess]

Here is a fast tracked peer reviewed study
https://www.healthaffairs.org/doi/10.1377/hlthaff.2020.00818

[ColoCdn]

Co-written by George Wehby, who teaches Health Economics and Econometrics at the U of Iowa, and Wei Lyu, both of whom are health policy researchers. The study you refer to is merely a data analysis of comparative results from different states. Hardly a scientific study. Try again.