Launois R, Fiestas Navarette L, Ethgen O, Le Moine J, Gatsinga R. Health economic value of an innovation: delimiting the scope and framework of future market entry agreements. J Market Access Health Policy. 2014 Jun;2:24988. doi: 10.3402/jmahp.v2.24988
Pring CM, Skelding-Millar L, Goodall RJ. Expectant treatment or cholecystectomy after endoscopic retrograde cholangiopancreatography for choledocholithiasis in patients over 80 years old? Surg Endosc. 2005 Mar;19(3):357-60.