Negative efficacy (colleenhuber.substack.com)
[Negative efficacy](https://colleenhuber.substack.com/p/trading-covid-for-heart-disease-buys?r=rq1kt&utm_campaign=post&utm_medium=email&utm_source=direct)
Thank you for the link Patriot, here is another link that is important.
Thank you for the link Patriot, here is another link that is important.
https://pubmed.ncbi.nlm.nih.gov/16260046/
(post is archived)