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

Year Number of Results
1934 1
1935 1
1936 1
1938 4
1939 1
1940 3
1942 1
1943 1
1944 1
1945 69
1946 207
1947 233
1948 228
1949 227
1950 422
1951 417
1952 413
1953 407
1954 367
1955 376
1956 314
1957 353
1958 313
1959 353
1960 322
1961 425
1962 403
1963 614
1964 732
1965 536
1966 506
1967 682
1968 831
1969 913
1970 888
1971 948
1972 930
1973 1018
1974 1009
1975 993
1976 906
1977 857
1978 758
1979 756
1980 795
1981 792
1982 746
1983 674
1984 683
1985 696
1986 673
1987 605
1988 600
1989 647
1990 651
1991 560
1992 570
1993 638
1994 666
1995 678
1996 732
1997 774
1998 829
1999 863
2000 993
2001 1142
2002 1187
2003 1238
2004 1311
2005 1409
2006 1514
2007 1485
2008 1595
2009 1539
2010 1494
2011 1502
2012 1488
2013 1393
2014 1436
2015 1370
2016 1345
2017 1261
2018 1161
2019 1107
2020 1204
2021 1109
2022 1401
2023 1343
2024 869
2025 394

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Page 1
Practice observed.
Newson LR, Gray S. Newson LR, et al. Post Reprod Health. 2017 Sep;23(3):146-148. doi: 10.1177/2053369117723478. Post Reprod Health. 2017. PMID: 28931357 No abstract available.
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