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

Year Number of Results
1948 1
1953 1
1954 3
1955 3
1957 2
1958 1
1959 1
1960 1
1961 4
1962 4
1965 1
1966 3
1967 15
1968 31
1969 29
1970 22
1971 33
1972 43
1973 62
1974 81
1975 70
1976 80
1977 81
1978 102
1979 107
1980 141
1981 143
1982 140
1983 134
1984 154
1985 191
1986 167
1987 158
1988 150
1989 163
1990 193
1991 177
1992 187
1993 220
1994 221
1995 221
1996 216
1997 198
1998 189
1999 199
2000 176
2001 165
2002 178
2003 191
2004 183
2005 195
2006 203
2007 155
2008 202
2009 209
2010 210
2011 204
2012 218
2013 206
2014 234
2015 188
2016 157
2017 170
2018 151
2019 154
2020 139
2021 77
2022 14
2023 10
2024 34

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7,975 results

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Page 1
Chorionic gonadotropin concentration.
Roger M. Roger M. Fertil Steril. 1981 Sep;36(3):411-2. doi: 10.1016/s0015-0282(16)45749-3. Fertil Steril. 1981. PMID: 7286262 Free article. No abstract available.
Human chorionic gonadotropin.
Fukunaga FH. Fukunaga FH. Hawaii Med J. 1989 Apr;48(4):143, 146. Hawaii Med J. 1989. PMID: 2737900 No abstract available.
7,975 results