HIPAA has IP addresses listed as one of the unique identifiers you must protect in your dataset.
"Facebook sent a doctor on a secret mission to ask hospitals to share patient data"
https://www.cnbc.com/2018/04/05/facebook-building-8-explored...
"Facebook held a special breakfast for drug marketers about recruiting people for clinical trials"
https://www.cnbc.com/2017/09/07/facebook-held-a-breakfast-to...
"How Facebook can ‘unblind’ a clinical trial"
https://www.outsourcing-pharma.com/Article/2014/06/09/Pfizer...
I'm the same person as the other account btw, not trying to hide that.