Looked into it and they cite this study: https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2755855 https://jamanetwork.com/journals/jamanetworkopen/

Looked into it and they cite this study: https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2755855 https://jamanetwork.com/journals/jamanetworkopen/fullarticle... Which explicitly states that the link is unclear. So it seems to me like they're really grasping at straws here.