 ProCor’s global outreach included The Ashanti-ProCor Project, launched in 2006, which was designed to assess cardiovascular disease knowledge and practice among health workers in the Ashanti Region of Ghana, identify those who can play a key role in prevention, and explore their information needs as a way to better address the needs of physicians in the developing world.In 1996, Lown, with Stephanie Woolhandler and David Himmelstein of the Cambridge City Hospital; Jerry Avorn, head of Pharmacoepidemiology at the Harvard Medical School; and Susan Bennett, a primary care physician at Massachusetts General Hospital formed the Ad Hoc Committee to Defend Healthcare.Many health workers joined the Ad Hoc Committee, the objective of which was to promote a single-payer healthcare system in Massachusetts 

In 1997, a letter signed by over 2000 Massachusetts physicians outlined the need for single-payer healthcare.