Bruni, Matteo Lippi; Nobilio, Lucia; Ugolini, Cristina - In: Health Economics 17 (2008) 2, pp. 221-233
We analyse referral patterns for patients undergoing percutaneous transluminal coronary angioplasty (PTCA) in the Emilia Romagna region of Italy, a procedure for which the assumption of a negative association between volume and adverse outcomes is used to justify its territorial concentration....