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

Year Number of Results
1945 18
1946 54
1947 84
1948 108
1949 124
1950 185
1951 206
1952 164
1953 137
1954 138
1955 155
1956 118
1957 124
1958 114
1959 103
1960 110
1961 97
1962 117
1963 169
1964 252
1965 195
1966 207
1967 225
1968 258
1969 273
1970 268
1971 229
1972 228
1973 226
1974 213
1975 176
1976 157
1977 139
1978 142
1979 141
1980 115
1981 122
1982 96
1983 125
1984 127
1985 102
1986 116
1987 85
1988 107
1989 114
1990 106
1991 97
1992 118
1993 101
1994 106
1995 93
1996 97
1997 114
1998 110
1999 135
2000 144
2001 122
2002 151
2003 169
2004 166
2005 157
2006 172
2007 178
2008 187
2009 177
2010 170
2011 214
2012 230
2013 276
2014 221
2015 230
2016 218
2017 180
2018 214
2019 231
2020 253
2021 205
2022 186
2023 178
2024 73

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12,015 results

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Page 1
Vitamin B12 deficiency.
Silverstein WK, Cheung MC, Lin Y. Silverstein WK, et al. CMAJ. 2022 Jun 20;194(24):E843. doi: 10.1503/cmaj.220306. CMAJ. 2022. PMID: 35724997 Free PMC article. No abstract available.
Vitamin B12 deficiency.
Green R, Miller JW. Green R, et al. Vitam Horm. 2022;119:405-439. doi: 10.1016/bs.vh.2022.02.003. Epub 2022 Mar 11. Vitam Horm. 2022. PMID: 35337628
Vitamin B12 and health.
Ryan-Harshman M, Aldoori W. Ryan-Harshman M, et al. Can Fam Physician. 2008 Apr;54(4):536-41. Can Fam Physician. 2008. PMID: 18411381 Free PMC article. Review.
Macro-B12 masking B12 deficiency.
Wolffenbuttel BHR, Muller Kobold AC, Sobczyńska-Malefora A, Harrington DJ. Wolffenbuttel BHR, et al. BMJ Case Rep. 2022 Jan 13;15(1):e247660. doi: 10.1136/bcr-2021-247660. BMJ Case Rep. 2022. PMID: 35027389 Free PMC article.
12,015 results
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