61
Έκδοση 1945
Full text available from Advanced Technologies & Aerospace Database: 12/01/1997 to 10/31/2011
Full text available from Career & Technical Education Database: 12/01/1997 to 10/31/2011
Full text available from Military Database: 12/01/1997 to 10/31/2011
Full text available from Research Library: 12/01/1997 to 10/31/2011
Κυβερνητικό Έγγραφο Ηλεκτρονική πηγή Επιστημονικό περιοδικό
63
Έκδοση 1994
Full text available from Biological Science Database: 01/01/2013 to 10/31/2014
Full text available from India Database: 01/01/2013 to 10/31/2014
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
64
Έκδοση 1978
Full text available from Health & Medical Collection: 01/01/2016 to present
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
65
Full text available from Health & Medical Collection: 01/01/1996 to 05/31/2012
Full text available from Public Health Database: 01/01/1996 to 05/31/2012
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
66
Έκδοση 2010
Full text available from Health & Medical Collection: 01/01/2018 to present
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
67
68
Έκδοση 1988
Full text available from Health & Medical Collection: 09/01/1983 to 12/31/1995
Full text available from Public Health Database: 09/01/1983 to 12/31/1995
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
69
Έκδοση 1991
Full text available from Research Library: 04/01/2005 to present
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
70
Full text available from Research Library: 01/01/2012 to 01/31/2017
Full text available from Social Science Database: 01/01/2012 to 01/31/2017
Full text available from Turkey Database: 01/01/2012 to 01/31/2017
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
71
Έκδοση 1991
Full text available from Health & Medical Collection: 03/01/2007 to 06/30/2009
Full text available from Public Health Database: 03/01/2007 to 06/30/2009
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
73
Έκδοση 2005
Full text available from Education Database: 07/01/2006 to present
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
77
Full text available from Health & Medical Collection: 01/01/2008 to 06/30/2009
Full text available from Nursing & Allied Health Database: 01/01/2008 to 06/30/2009
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
78
Έκδοση 1971
Full text available from Canadian Business & Current Affairs Database: 01/01/1993 to 1995
Full text available from Research Library: 01/01/1993 to 1995
Full text available from Science Database: 01/01/1993 to 1995
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
79
Full text available from Political Science Database: 01/01/2008 to 10/31/2010
Full text available from Research Library: 01/01/2008 to 10/31/2010
Full text available from Sociology Database: 01/01/2008 to 10/31/2010
Ηλεκτρονική πηγή Επιστημονικό περιοδικό