Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

Filters

My Custom Filters

Edit custom filters

Results by year

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

Year Number of Results
1787 2
1788 1
1791 2
1792 4
1793 1
1794 3
1797 8
1799 2
1800 4
1801 2
1803 2
1804 1
1806 2
1807 2
1808 1
1811 1
1812 3
1813 4
1814 1
1815 3
1818 2
1819 2
1820 2
1821 2
1822 1
1823 1
1824 1
1825 2
1826 2
1827 5
1829 4
1830 2
1831 2
1832 1
1833 2
1834 3
1836 1
1837 1
1838 1
1839 4
1840 3
1841 7
1842 11
1843 9
1844 11
1845 5
1846 5
1847 10
1848 12
1849 8
1850 6
1851 6
1852 7
1853 23
1854 11
1855 12
1856 13
1857 7
1858 6
1859 14
1860 7
1861 5
1862 12
1863 5
1864 4
1865 6
1866 6
1867 13
1868 10
1869 10
1870 14
1871 19
1872 12
1873 25
1874 16
1875 26
1876 10
1877 15
1878 19
1879 35
1880 16
1881 16
1882 18
1883 20
1884 20
1885 44
1886 45
1887 54
1888 39
1889 25
1890 44
1891 23
1892 32
1893 50
1894 35
1895 36
1896 39
1897 35
1898 39
1899 38
1900 50
1901 41
1902 39
1903 20
1904 31
1905 69
1906 36
1907 37
1908 40
1909 62
1910 90
1911 118
1912 63
1913 61
1914 91
1915 78
1916 78
1917 63
1918 58
1919 79
1920 77
1921 89
1922 64
1923 50
1924 74
1925 67
1926 42
1927 49
1928 57
1929 55
1930 45
1931 51
1932 45
1933 39
1934 50
1935 32
1936 36
1937 39
1938 41
1939 35
1940 39
1941 30
1942 35
1943 35
1944 37
1945 243
1946 639
1947 710
1948 694
1949 642
1950 1147
1951 1374
1952 1201
1953 1442
1954 1426
1955 1493
1956 1376
1957 1380
1958 1336
1959 1309
1960 1190
1961 1255
1962 1409
1963 1673
1964 1944
1965 1740
1966 2058
1967 2153
1968 2441
1969 2550
1970 2524
1971 2525
1972 2714
1973 2891
1974 3111
1975 5017
1976 5396
1977 5245
1978 5679
1979 6098
1980 6092
1981 5870
1982 6345
1983 6823
1984 7452
1985 7541
1986 7774
1987 8094
1988 8652
1989 10829
1990 11200
1991 11625
1992 12031
1993 12677
1994 13378
1995 14318
1996 14864
1997 15839
1998 16648
1999 17678
2000 19401
2001 21288
2002 22033
2003 23503
2004 26565
2005 30281
2006 33929
2007 36458
2008 39340
2009 42337
2010 47520
2011 52470
2012 59183
2013 62844
2014 70032
2015 76216
2016 83309
2017 95640
2018 108369
2019 123367
2020 188197
2021 210062
2022 239120
2023 286937
2024 343382
2025 394927
2026 185733
2027 3
2028 1

Publication date

Text availability

Article attribute

Article type

Additional filters

Article Language

Species

Sex

Age

Other

Search Results

2,864,528 results

Results by year

Filters applied: . Clear all
Page 1
Protracted labour.
PARVIAINEN S, INGMAN O. PARVIAINEN S, et al. Acta Obstet Gynecol Scand Suppl. 1950;30(Suppl. 7):87-110. doi: 10.3109/00016345009164764. Acta Obstet Gynecol Scand Suppl. 1950. PMID: 14799174 No abstract available.
Prolonged labour.
SMITH HG. SMITH HG. Can Med Assoc J. 1953 Dec;69(6):617-21. Can Med Assoc J. 1953. PMID: 13106804 Free PMC article. No abstract available.
Positions during labour.
CHAN DP. CHAN DP. Br Med J. 1963 Jan 12;1(5323):100-2. doi: 10.1136/bmj.1.5323.100. Br Med J. 1963. PMID: 14019983 Free PMC article. No abstract available.
Prolonged labour.
VAN DONGEN LG. VAN DONGEN LG. Cent Afr J Med. 1957 Apr;3(4):128-34. Cent Afr J Med. 1957. PMID: 13461079 No abstract available.
Prolonged labour.
LLEWELLYN-JONES D. LLEWELLYN-JONES D. Med J Malaya. 1958 Sep;13(1):43-8. Med J Malaya. 1958. PMID: 13589368 No abstract available.
Pethidine in labour.
BEATON D. BEATON D. Edinb Med J. 1948 Jun;55(6):354-61. Edinb Med J. 1948. PMID: 18875666 Free PMC article. No abstract available.
Trilene in labour.
MAIDLOW WM, STRUAN-MARSHALL J. MAIDLOW WM, et al. Br Med J. 1947 Mar 15;1(4497):355. doi: 10.1136/bmj.1.4497.355-a. Br Med J. 1947. PMID: 20248000 Free PMC article. No abstract available.
Trichlorethylene in labour.
RAWLINGS EE. RAWLINGS EE. Br Med J. 1953 Feb 21;1(4807):436-8. doi: 10.1136/bmj.1.4807.436. Br Med J. 1953. PMID: 13009236 Free PMC article. No abstract available.
Pethidine in labour.
WATERS AB. WATERS AB. Br Med J. 1947 Jul 12;2(4514):71. doi: 10.1136/bmj.2.4514.71-b. Br Med J. 1947. PMID: 20344014 Free PMC article. No abstract available.
Pethidine in labour.
ROSE EM. ROSE EM. Br Med J. 1947 May 10;1(4505):656. doi: 10.1136/bmj.1.4505.656-a. Br Med J. 1947. PMID: 20343524 Free PMC article. No abstract available.
2,864,528 results
You have reached the last available page of results. Please see the User Guide for more information.