... Resources for Health Open AccessResearch Understanding informal payments in health care: motivation of health workers in TanzaniaSilvia Stringhini*1,2, Steve Thomas1, Posy Bidwell1, Tina Mtui3 ... M: Understanding informal payments for health care: the example of Bulgaria. Health Policy 2002,62:243-327.3. Gaal P, Belli P, McKee M, Szócska M: Informal payments for health care: definitions, ... of illness. This was the main demotivating factor for health workers in accepting informal payments. "Patients themselves, after giving something, do con-trol the health workers. You find...