Tell that to the to editorial board of the 33rd highest impact factor journal in the world: https://www.scimagojr.com/journalrank.php https://www.scimagojr.com/

Tell that to the to editorial board of the 33rd highest impact factor journal in the world: https://www.scimagojr.com/journalrank.php https://www.scimagojr.com/journalrank.php I suggest you read more closely. There are multiple references to interventions at the state level in the US. BTW, how would you ethically design a study like this including a control group?