Purdue Pharma's cozy relationship with Tufts

• The Massachusetts attorney general has alleged that "Purdue got to control research on the treatment of pain coming out of a prominent and respected institution of learning."

The big picture: Experts told Stat that this isn't necessarily an example of a company buying influence, but instead it points to a larger problem:

• "So much industry money flows to academic institutions, professional societies, and patient advocacy organizations that it’s hard to tease apart what’s a purchase of influence and what’s a marriage of convenience for groups with aligned interests or beliefs," Stat's Andrew Joseph writes.

Go deeper: 3 museums reject donations from Sackler family