https://wendellpotter.substack.com/p/big-insurance-2022-revenues-reached#:~:text=Collectively%2C%20their%20PBM%20profits%20increased,Aetna's%20Caremark%2C%20and%20UnitedHealth's%20Optum.
https://wendellpotter.substack.com/p/big-insurance-2022-revenues-reached#:~:text=Collectively%2C%20their%20PBM%20profits%20increased,Aetna's%20Caremark%2C%20and%20UnitedHealth's%20Optum.