| from 02/01/1981 to present in CINAHL Plus with Full Text |
| from 1999 to present in Free Medical Journals |
| from 02/01/2000 to present in Freely Accessible Science Journals |
| from 02/01/2001 to present in Academic Search Complete |
| from 02/01/2001 to present in Health Source--Nursing/Academic Edition |
| from 02/01/1999 to 02/28/2006 in Black Studies Center |
| from 11/01/2002 to present in Academic Search Complete |
| from 11/01/2002 to present in CINAHL Plus with Full Text |
| from 11/01/2002 to present in Health Source--Nursing/Academic Edition |
| from Spring 2006 to present in Black Studies Center |
| from 11/01/2007 to present in Academic Search Complete |
| from 2011 to present in Directory of Open Access Journals |
| from 03/01/2011 to present in Versita Open |
| from 2005 to present in Directory of Open Access Journals |
| from 2005 to present in Free Medical Journals |
| from 01/01/2005 to present in Open Access Digital Library |
| from 10/01/1978 to 12/31/1999 in Journals@Ovid LWW Legacy Archive |
| from 03/01/1995 to present in Journals@Ovid LWW Total Access Collection 2012 Q-1 minus Neurology |
| from 03/01/1999 to 12/31/2005 in CINAHL Plus with Full Text |
| from 1986 to 1989 in ScienceDirect Anesthesiology, Pain Medicine, Emergency Medicine, Critical Care and Intensive Medicine Backfile |
| from 1986 to 1989 in ScienceDirect Medicine & Dentistry Backfiles |
| from 01/01/1998 to present in CINAHL Plus with Full Text |
| from 11/01/1998 to 10/31/2009 in CBCA Reference & Current Events |
| from 01/01/2003 to present in LexisNexis Academic |
| from 01/01/2002 to present in American Association of Critical Care Nurses |
| from 01/01/2002 to present in Open Access Digital Library |
| from 2002 to 1 year ago in Free Medical Journals |
| from 11/01/2002 to present in CINAHL Plus with Full Text |
| from 10/01/1900 to 12/31/2004 in JSTOR Life Sciences Archive Collection |
| from 10/01/1900 to 12/31/1999 in Journals@Ovid LWW Legacy Archive |
| from 01/01/1996 to present in Journals@Ovid LWW Total Access Collection 2012 Q-1 minus Neurology |
| from 1998 to 1 month ago in Freely Accessible Science Journals |
| from 01/01/2001 to present in Academic Search Complete |
| from 01/01/2001 to present in CINAHL Plus with Full Text |
| from 01/01/2001 to present in Health Source--Nursing/Academic Edition |
| from 06/01/2005 to 03/29/2012 in CINAHL Plus with Full Text |
| from 1963 to 1994 in ScienceDirect Nursing and Health Professions Backfile |
| from 01/01/1995 to present in ScienceDirect Journals |
| from 01/01/1995 to 12/31/2007 in Journals@Ovid Ovid Full Text |
| from 06/01/2004 to 02/01/2009 in CINAHL Plus with Full Text |
| from 2009 to present in Directory of Open Access Journals |
| from 2009 to present in Free Medical Journals |
| from 2009 to present in Freely Accessible Science Journals |
| from 01/01/2009 to present in Open Access Digital Library |
| from 1988 to 1994 in ScienceDirect Nursing and Health Professions Backfile |
| from 01/01/1995 to present in ScienceDirect Freedom Collection 2012 |
| from 1995 to present in ScienceDirect Journals |
| from 2001 to present in Directory of Open Access Journals |
| from 2001 to present in Free Medical Journals |
| from 2001 to present in REDALyC |
| from 01/01/2001 to present in Open Access Digital Library |
| from 10/01/2005 to present in Academic Search Complete |
| from 2010 to present in PRISMA |
| from 01/01/2000 to present in CINAHL Plus with Full Text |
| from 2000 to present in Freely Accessible Science Journals |
| from 2007 to present in Free Medical Journals |
| from 06/01/2007 to present in ScienceDirect Freedom Collection 2012 |
| from 09/01/2005 to present in ScienceDirect Freedom Collection 2012 |
| from 07/01/2005 to 06/30/2008 in CINAHL Plus with Full Text |
| from 1992 to 1994 in ScienceDirect Nursing and Health Professions Backfile |
| from 01/01/1995 to present in ScienceDirect Freedom Collection 2012 |
| from 10/01/1996 to 09/30/2004 in ScienceDirect Freedom Collection 2012 |
| from 2000 to present in Free Medical Journals |
| from 09/01/2000 to present in Freely Accessible Science Journals |
| from 06/01/2005 to present in Academic Search Complete |
| from 06/01/2005 to present in CINAHL Plus with Full Text |
| from 07/01/1993 to present in CINAHL Plus with Full Text |
| from 02/01/1995 to present in Academic Search Complete |
| from 02/01/1995 to present in Health Source--Nursing/Academic Edition |
| from 02/01/1995 to present in MasterFILE Premier |
| from 01/01/2002 to present in CINAHL Plus with Full Text |
| from 01/01/2008 to present in CINAHL Plus with Full Text |
| from 04/23/1992 to present in CINAHL Plus with Full Text |
| from 06/01/2002 to 05/31/2006 in CINAHL Plus with Full Text |
| from 06/01/2002 to 04/30/2006 in Academic Search Complete |
| from 06/01/2002 to 04/30/2006 in Health Source--Nursing/Academic Edition |
| from 06/01/2002 to 04/30/2006 in MasterFILE Premier |
| from 06/01/2007 to present in CINAHL Plus with Full Text |
| from 1999 to 2002 in Full text available from the publisher |
| from 1999 to 2002 in Longwoods Publishing Journals |
| from 01/01/1999 to 04/30/2009 in CBCA Reference & Current Events |
| from 09/01/2004 to present in CINAHL Plus with Full Text |
| from 03/01/2008 to 12/31/2009 in CINAHL Plus with Full Text |
| from 2002 to present in Directory of Open Access Journals |
| from 2002 to present in Free Medical Journals |
| from 01/01/2002 to present in Open Access Digital Library |
| from 01/01/2001 to 09/30/2002 in Journals@Ovid LWW Total Access Collection 2012 Q-1 minus Neurology |
| from 02/01/2005 to present in ScienceDirect Freedom Collection 2012 |
| from 03/01/1983 to 12/31/1999 in Journals@Ovid LWW Legacy Archive |
| from 01/01/1996 to 02/28/2002 in Journals@Ovid LWW Total Access Collection 2012 Q-1 minus Neurology |
| from 03/01/1983 to 12/31/1999 in Journals@Ovid LWW Legacy Archive |
| from 03/01/2002 to present in Journals@Ovid LWW Total Access Collection 2012 Q-1 minus Neurology |
| from 03/01/1995 to present in CINAHL Plus with Full Text |
| from 12/01/2006 to present in Academic Search Complete |
| from 12/01/2006 to present in CINAHL Plus with Full Text |
| from 09/01/1994 to 03/29/2012 in Academic Search Complete |
| from 09/01/1994 to 03/29/2012 in CINAHL Plus with Full Text |
| from 09/01/1994 to 03/29/2012 in Health Source--Nursing/Academic Edition |
| from 09/01/1994 to 03/29/2012 in MasterFILE Premier |
| from 2002 to 1 year ago in Free Medical Journals |
| from 02/01/2002 to present in American Association of Critical Care Nurses |
| from 10/01/2002 to present in Academic Search Complete |
| from 10/01/2002 to present in CINAHL Plus with Full Text |
| from 10/01/2002 to present in Health Source--Nursing/Academic Edition |
| from 01/01/1982 to 12/31/1999 in Journals@Ovid LWW Legacy Archive |
| from 01/01/2001 to present in Journals@Ovid LWW Total Access Collection 2012 Q-1 minus Neurology |
| from 01/01/2001 to 08/24/2007 in Academic Search Complete |
| from 01/01/2001 to 08/24/2007 in CINAHL Plus with Full Text |
| from 01/01/2001 to 08/24/2007 in Health Source--Nursing/Academic Edition |
| from 2004 to 2010 in REDALyC |
| from 2005 to present in Directory of Open Access Journals |
| from 01/01/2005 to present in Open Access Digital Library |
| from 2000 to present in REDALyC |
| from 2005 to present in Directory of Open Access Journals |
| from 01/01/2005 to present in Open Access Digital Library |
| from 09/01/2004 to present in Academic Search Complete |
| from 09/01/2004 to present in CINAHL Plus with Full Text |
| from 09/01/2004 to present in Health Source--Nursing/Academic Edition |
| from 03/01/2008 to present in CINAHL Plus with Full Text |
| from 1946 to 1962 in Freely Accessible Science Journals |
| from 01/01/1995 to 12/31/2000 in CINAHL Plus with Full Text |
| from 1992 to present in Freely Accessible Social Science Journals |
| from 1995 to present in ScienceDirect Freedom Collection 2012 |
| from 1995 to present in ScienceDirect Journals |
| from 11/01/1986 to 10/31/1999 in Journals@Ovid LWW Legacy Archive |
| from 01/01/1999 to present in Journals@Ovid LWW Total Access Collection 2012 Q-1 minus Neurology |
| from 01/01/1999 to 12/31/2005 in CINAHL Plus with Full Text |
| from 1997 to 1999 in Wiley-Blackwell Journals (Frontfile Content) |
| from 02/01/2005 to 11/30/2009 in CBCA Reference & Current Events |
| from 09/01/2004 to present in CINAHL Plus with Full Text |
| from 2008 to present in Directory of Open Access Journals |
| from 01/01/2008 to present in Open Access Digital Library |
| from 1997 to present in Wiley-Blackwell Journals (Frontfile Content) |
| from 03/01/1998 to 1 year ago in Academic Search Complete |
| from 03/01/1998 to 1 year ago in CINAHL Plus with Full Text |
| from 03/01/1998 to 1 year ago in Health Source--Nursing/Academic Edition |
| from 1963 to 1994 in ScienceDirect Medicine & Dentistry Backfiles |
| from 1963 to 1994 in ScienceDirect Nursing and Health Professions Backfile |
| from 01/01/1995 to present in ScienceDirect Freedom Collection 2012 |
| from 1995 to present in ScienceDirect Journals |
| from 2002 to present in Wiley-Blackwell Journals (Frontfile Content) |
| from 07/01/2002 to 1 year ago in Academic Search Complete |
| from 07/01/2002 to 1 year ago in CINAHL Plus with Full Text |
| from 07/01/2002 to 1 year ago in Health Source--Nursing/Academic Edition |
| from 01/01/2002 to present in CINAHL Plus with Full Text |
| from 01/01/1981 to 1 year ago in CINAHL Plus with Full Text |
| from 1998 to present in Wiley-Blackwell Journals (Frontfile Content) |
| from 03/01/2000 to 1 year ago in Academic Search Complete |
| from 03/01/2000 to 1 year ago in Health Source--Nursing/Academic Edition |
| from 1997 to present in Directory of Open Access Journals |
| from 1997 to present in Freely Accessible Science Journals |
| from 01/01/1997 to present in Open Access Digital Library |
| from 1997 to 2010 in Free Medical Journals |
| from 01/01/2002 to present in Academic Search Complete |
| from 01/01/2002 to present in CINAHL Plus with Full Text |
| from 01/01/2002 to present in Health Source--Nursing/Academic Edition |
| from 2007 to present in Free Medical Journals |
| from 01/01/2010 to present in Open Access Digital Library |
| from 2010 to present in PubMed Central (Full Participant titles) |
| from 01/01/1995 to present in CINAHL Plus with Full Text |
| from 2011 to present in Directory of Open Access Journals |
| from 2011 to present in PubMed Central (Full Participant titles) |
| from 01/01/2011 to present in Open Access Digital Library |
| from 06/01/2004 to 1 year ago in CINAHL Plus with Full Text |
| from 2000 to present in Wiley-Blackwell Journals (Frontfile Content) |
| from 01/01/2002 to 1 year ago in Academic Search Complete |
| from 01/01/2002 to 1 year ago in CINAHL Plus with Full Text |
| from 01/01/2002 to 1 year ago in Health Source--Nursing/Academic Edition |
| from 01/01/1981 to 1 year ago in CINAHL Plus with Full Text |
| from 01/01/1989 to 1 year ago in Academic Search Complete |
| from 01/01/1989 to 1 year ago in Health Source--Nursing/Academic Edition |
| from 1997 to present in Wiley-Blackwell Journals (Frontfile Content) |
| from 01/01/1984 to 12/31/2005 in JSTOR Life Sciences Archive Collection |
| from 03/01/1984 to 1 year ago in Academic Search Complete |
| from 03/01/1984 to 1 year ago in CINAHL Plus with Full Text |
| from 03/01/1984 to 1 year ago in Health Source--Nursing/Academic Edition |
| from 03/01/1997 to present in Taylor & Francis Current Content Access |
| from 02/01/1995 to present in ScienceDirect Freedom Collection 2012 |
| from 02/01/1995 to present in ScienceDirect Journals |
| from 03/01/1999 to present in SAGE Premier 2007 without AERA |
| from 1973 to present in HeinOnline Core U.S./Most Cited Law Journals |
| from 1993 to present in HeinOnline Law Journal Library |
| from 1993 to 2008 in HeinOnline Core U.S./Most Cited Law Journals |
| from 03/01/1995 to present in Academic Search Complete |
| from 03/01/1995 to present in CINAHL Plus with Full Text |
| from 03/01/1995 to present in Health Source--Nursing/Academic Edition |
| from 03/01/1995 to present in Legal Collection |
| from 1997 to present in Wiley-Blackwell Journals (Frontfile Content) |
| from 03/01/1998 to present in LegalTrac |
| from 02/28/2000 to present in LexisNexis Academic |
| from 10/01/1969 to present in Journals@Ovid LWW Total Access Collection 2012 Q-1 minus Neurology |
| from 1997 to present in Wiley-Blackwell Journals (Frontfile Content) |
| from 01/01/1998 to 1 year ago in Academic Search Complete |
| from 01/01/1998 to 1 year ago in CINAHL Plus with Full Text |
| from 01/01/1998 to 1 year ago in Health Source--Nursing/Academic Edition |
| from 06/01/2001 to present in Journals@Ovid LWW Total Access Collection 2012 Q-1 minus Neurology |
| from 12/01/2002 to 12/31/2009 in Academic Search Complete |
| from 12/01/2002 to 12/31/2009 in CINAHL Plus with Full Text |
| from 2000 to present in Wiley-Blackwell Journals (Frontfile Content) |
| from 03/01/2003 to present in Academic Search Complete |
| from 03/01/2003 to present in CINAHL Plus with Full Text |
| from 03/01/2003 to present in Health Source--Nursing/Academic Edition |
| from 07/01/1987 to 12/31/1999 in Journals@Ovid LWW Legacy Archive |
| from 03/01/1999 to present in Journals@Ovid LWW Total Access Collection 2012 Q-1 minus Neurology |
| from 03/01/1999 to 12/31/2005 in CINAHL Plus with Full Text |
| from 1985 to 1994 in ScienceDirect Nursing and Health Professions Backfile |
| from 01/01/1995 to present in ScienceDirect Freedom Collection 2012 |
| from 1995 to present in ScienceDirect Journals |
| from 03/01/2004 to present in ScienceDirect Freedom Collection 2012 |
| from 01/01/2005 to present in SAGE Premier 2007 without AERA |
| from 1997 to present in Wiley-Blackwell Journals (Frontfile Content) |
| from 01/01/2000 to 1 year ago in Academic Search Complete |
| from 01/01/2000 to 1 year ago in CINAHL Plus with Full Text |
| from 01/01/2000 to 1 year ago in Health Source--Nursing/Academic Edition |
| from 01/01/1997 to present in CINAHL Plus with Full Text |
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