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

Year Number of Results
1945 6
1946 23
1947 21
1948 17
1949 19
1950 43
1951 58
1952 105
1953 90
1954 70
1955 76
1956 59
1957 56
1958 65
1959 51
1960 48
1961 41
1962 47
1963 74
1964 94
1965 107
1966 51
1967 86
1968 154
1969 170
1970 165
1971 182
1972 197
1973 260
1974 425
1975 585
1976 620
1977 646
1978 852
1979 988
1980 923
1981 861
1982 794
1983 813
1984 860
1985 856
1986 955
1987 1112
1988 1268
1989 1510
1990 1733
1991 2088
1992 2347
1993 2689
1994 2863
1995 3187
1996 3196
1997 3534
1998 3829
1999 3807
2000 4024
2001 4188
2002 4116
2003 4399
2004 4898
2005 5054
2006 5536
2007 5658
2008 5617
2009 5586
2010 5651
2011 5853
2012 6332
2013 6297
2014 6788
2015 6834
2016 6622
2017 6032
2018 5885
2019 6272
2020 5896
2021 3506
2022 1634
2023 1530
2024 2947
2025 2201

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165,579 results

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Page 1
[Quality of health care].
Medina JL, De Melo PC. Medina JL, et al. Acta Med Port. 2000 Sep-Dec;13(5-6):303-7. Acta Med Port. 2000. PMID: 11234496 Free article. Portuguese.
Quality assurance.
Shamoo AE. Shamoo AE. Qual Assur. 1991 Oct;1(1):4-9. Qual Assur. 1991. PMID: 1669967 Review.
Quality assurance vs. quality improvement.
Eastes L. Eastes L. J Air Med Transp. 1991 Mar;10(3):5-6. doi: 10.1016/s1046-9095(05)80589-6. J Air Med Transp. 1991. PMID: 10183465 No abstract available.
165,579 results
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