Amorphous silicon (a-Si), flat-panel, x-ray detector versus screen-film radiography: Effect of dose reduction on the detectability of cortical bone defects and fractures. - Strotzer,M.; Gmeinwieser,J.; Spahn,M.; Völk,M.; Fründ,R.; Seitz,J.; Spies,V.; Alexander,J.; Feuerbach,S. (Invest Radiol, 1998)