1
Full text available from ABI/INFORM Global: 04/01/2005 to present
Full text available from East Europe, Central Europe Database: 04/01/2005 to present
Full text available from Healthcare Administration Database: 04/01/2005 to present
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
2
Έκδοση 2000
Full text available from ABI/INFORM Global: 03/01/2008 to present
Full text available from Research Library: 03/01/2008 to present
Ηλεκτρονική πηγή Επιστημονικό περιοδικό