1
Έκδοση 2012
Full text available from Environmental Science Database: 01/01/2015 to present
Full text available from Health & Medical Collection: 01/01/2015 to present
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
2
Έκδοση 2013
Full text available from Health & Medical Collection: 01/01/2013 to present
Full text available from Healthcare Administration Database: 01/01/2013 to present
Full text available from Public Health Database: 01/01/2013 to present
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
7
Full text available from Health & Medical Collection: 01/01/1997 to 1 year ago
Full text available from Public Health Database: 01/01/1997 to 1 year ago
Full text available from Sociology Database: 01/01/1997 to 1 year ago
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
11
Έκδοση 2001
Full text available from Political Science Database: 06/01/2015 to 07/31/2018
Full text available from Social Science Database: 06/01/2015 to 07/31/2018
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12
Full text available from Health & Medical Collection: 04/01/2011 to present
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15
Full text available from Environmental Science Database: 01/01/2008 to 12/31/2011
Full text available from Health & Medical Collection: 01/01/2008 to 12/31/2011
Full text available from Public Health Database: 01/01/2008 to 12/31/2011
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18
Full text available from Public Health Database: 01/01/2009 to present
Full text available from Research Library: 01/01/2009 to present
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19
Έκδοση 1994
Full text available from Education Database: 07/01/1998 to 11/30/2000
Full text available from Psychology Database: 07/01/1998 to 11/30/2000
Full text available from Sociology Database: 07/01/1998 to 11/30/2000
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
20
Available in Education Source.
Ηλεκτρονική πηγή Επιστημονικό περιοδικό