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Table representation of search results timeline featuring number of search results per year.
Year
Number of Results
1945
7
1946
11
1947
12
1948
10
1949
7
1951
16
1952
26
1953
24
1954
49
1955
32
1956
38
1957
35
1958
26
1959
20
1960
24
1961
16
1962
14
1964
3
1965
15
1966
88
1967
128
1968
144
1969
167
1970
178
1971
151
1972
121
1973
157
1974
163
1975
118
1976
116
1977
86
1978
81
1979
93
1980
86
1981
89
1982
110
1983
98
1984
106
1985
103
1986
102
1987
110
1988
85
1989
94
1990
90
1991
87
1992
96
1993
133
1994
150
1995
131
1996
118
1997
150
1998
176
1999
150
2000
185
2001
207
2002
194
2003
241
2004
262
2005
254
2006
217
2007
221
2008
220
2009
254
2010
252
2011
283
2012
283
2013
270
2014
259
2015
244
2016
223
2017
190
2018
218
2019
243
2020
219
2021
124
2022
66
2023
84
2024
69
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Page 1
Ascorbic acid and melanogenesis.
Ratnam AV, Sastry PB, Satyanarayana BV.
Ratnam AV, et al.
Br J Dermatol. 1977 Aug;97(2):201-4. doi: 10.1111/j.1365-2133.1977.tb15066.x.
Br J Dermatol. 1977.
PMID: 911682
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