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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1968 1
1974 1
1980 1
1984 1
1988 2
1990 2
1994 4
1995 4
1996 4
1998 3
1999 1
2001 1
2002 2
2003 3
2004 1
2005 2
2006 2
2007 5
2008 2
2009 2
2010 2
2011 1
2012 7
2013 3
2014 5
2015 4
2016 5
2017 4
2018 2
2021 0
Text availability
Article attribute
Article type
Publication date

Similar articles for PMID: 22218617

75 results
Results by year
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Page 1
Recruiting and retaining volunteers.
Ludwig GG. Ludwig GG. Emerg Med Serv. 2002 Oct;31(10):64. Emerg Med Serv. 2002. PMID: 12683276 No abstract available.
75 results