A number of pain management-focused patient advocacy groups and professional societies are on the defense after the release of a report showing that about 14 groups received nearly $9 million in funding from opioid manufacturers over a five-year period. The report, published by the Senate Homeland Security & Governmental Affairs Committee minority staff led by ranking Democrat Claire McCaskill (MO), asserts the organizations' policy agendas may have been affected by industry. However, the groups cited in the report maintain that...