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

Year Number of Results
1948 30
1949 112
1950 216
1951 269
1952 267
1953 282
1954 284
1955 297
1956 239
1957 264
1958 306
1959 231
1960 149
1961 151
1962 172
1963 133
1964 117
1965 102
1966 114
1967 86
1968 94
1969 117
1970 110
1971 52
1972 32
1973 80
1974 119
1975 173
1976 197
1977 194
1978 145
1979 143
1980 140
1981 141
1982 127
1983 140
1984 142
1985 146
1986 162
1987 133
1988 125
1989 171
1990 180
1991 140
1992 177
1993 170
1994 175
1995 151
1996 164
1997 202
1998 211
1999 226
2000 212
2001 248
2002 268
2003 333
2004 363
2005 371
2006 410
2007 346
2008 368
2009 342
2010 357
2011 408
2012 473
2013 666
2014 699
2015 712
2016 606
2017 490
2018 538
2019 626
2020 724
2021 490
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17,469 results
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Page 1
Vitamin B12 deficiency.
Oh R, Brown DL. Oh R, et al. Am Fam Physician. 2003 Mar 1;67(5):979-86. Am Fam Physician. 2003. PMID: 12643357 Free article. Review.
Diagnosis of vitamin B12 deficiency is typically based on measurement of serum vitamin B12 levels; however, about 50 percent of patients with subclinical disease have normal B12 levels. A more sensitive method of screening for vitamin
Diagnosis of vitamin B12 deficiency is typically based on measurement of serum vitamin B12 levels; however, abou …
Vitamin B12 deficiency as a worldwide problem.
Stabler SP, Allen RH. Stabler SP, et al. Annu Rev Nutr. 2004;24:299-326. doi: 10.1146/annurev.nutr.24.012003.132440. Annu Rev Nutr. 2004. PMID: 15189123 Review.
Dietary vitamin B12 deficiency is not prevalent in Asia, except in vegetarians. Areas for research include intermittent vitamin B12 supplement dosing and better measurements of the bioavailability of B12 in fermented vegetarian foods and algae.. …
Dietary vitamin B12 deficiency is not prevalent in Asia, except in vegetarians. Areas for research include intermittent vit
Vitamin B12 and cognitive function: an evidence-based analysis.
Health Quality Ontario. Health Quality Ontario. Ont Health Technol Assess Ser. 2013 Nov 1;13(23):1-45. eCollection 2013. Ont Health Technol Assess Ser. 2013. PMID: 24379897 Free PMC article. Review.
What is the effectiveness of oral versus parenteral vitamin B12 supplementation in those with confirmed vitamin B12 deficiency? ...Based on moderate quality evidence, oral vitamin B12 is as effective as parenteral vitamin B12
What is the effectiveness of oral versus parenteral vitamin B12 supplementation in those with confirmed vitamin B12
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.
MAIN MESSAGE: Vitamin B12 might confer health benefits; however, such benefits are difficult to ascertain because of the complementary functions of vitamin B12 and folic acid. Vitamin B12 might lower high homocysteine levels below a thres …
MAIN MESSAGE: Vitamin B12 might confer health benefits; however, such benefits are difficult to ascertain because of the compl …
The role of Vitamin B12 in the critically ill--a review.
Romain M, Sviri S, Linton DM, Stav I, van Heerden PV. Romain M, et al. Anaesth Intensive Care. 2016 Jul;44(4):447-52. doi: 10.1177/0310057X1604400410. Anaesth Intensive Care. 2016. PMID: 27456173 Free article. Review.
Vitamin B12 is an essential micronutrient, as humans have no capacity to produce the vitamin and it needs to be ingested from animal proteins. ...Treatment of Vitamin B12 deficiency is simple, but may be lifelong....
Vitamin B12 is an essential micronutrient, as humans have no capacity to produce the vitamin and it needs to be ingeste
Vitamin B12-containing plant food sources for vegetarians.
Watanabe F, Yabuta Y, Bito T, Teng F. Watanabe F, et al. Nutrients. 2014 May 5;6(5):1861-73. doi: 10.3390/nu6051861. Nutrients. 2014. PMID: 24803097 Free PMC article. Review.
The usual dietary sources of Vitamin B12 are animal-derived foods, although a few plant-based foods contain substantial amounts of Vitamin B12. To prevent Vitamin B12 deficiency in high-risk populations such as vegetarians, it is necessar …
The usual dietary sources of Vitamin B12 are animal-derived foods, although a few plant-based foods contain substantial amount …
Oral vitamin B12 versus intramuscular vitamin B12 for vitamin B12 deficiency.
Vidal-Alaball J, Butler CC, Cannings-John R, Goringe A, Hood K, McCaddon A, McDowell I, Papaioannou A. Vidal-Alaball J, et al. Cochrane Database Syst Rev. 2005 Jul 20;(3):CD004655. doi: 10.1002/14651858.CD004655.pub2. Cochrane Database Syst Rev. 2005. PMID: 16034940 Free PMC article. Updated. Review.
BACKGROUND: Vitamin B12 deficiency is common and rises with age. Most people with vitamin B12 deficiency are treated in primary care with intramuscular vitamin B12 which is a considerable source of work for health care professionals. ...D …
BACKGROUND: Vitamin B12 deficiency is common and rises with age. Most people with vitamin B12 deficiency are tre …
Vitamin B12 deficiency in the elderly: is it worth screening?
Wong CW. Wong CW. Hong Kong Med J. 2015 Apr;21(2):155-64. doi: 10.12809/hkmj144383. Epub 2015 Mar 10. Hong Kong Med J. 2015. PMID: 25756278 Free article. Review.
Vitamin B12 deficiency is common among the elderly. Elderly people are particularly at risk of vitamin B12 deficiency because of the high prevalence of atrophic gastritis-associated food-cobalamin (vitamin B12) malabsorption, and the incr
Vitamin B12 deficiency is common among the elderly. Elderly people are particularly at risk of vitamin B12 defic
Vitamin B12 and vegetarian diets.
Zeuschner CL, Hokin BD, Marsh KA, Saunders AV, Reid MA, Ramsay MR. Zeuschner CL, et al. Med J Aust. 2013 Aug 19;199(S4):S27-32. doi: 10.5694/mja11.11509. Med J Aust. 2013. PMID: 25369926
Vegans, and anyone who significantly limits intake of animal-based foods, require vitamin B12-fortified foods or supplements. Vitamin B12 deficiency has several stages and may be present even if a person does not have anaemia. ...A useful process for a …
Vegans, and anyone who significantly limits intake of animal-based foods, require vitamin B12-fortified foods or supplements. …
Vitamin B12 Intake From Animal Foods, Biomarkers, and Health Aspects.
Obeid R, Heil SG, Verhoeven MMA, van den Heuvel EGHM, de Groot LCPGM, Eussen SJPM. Obeid R, et al. Front Nutr. 2019 Jun 28;6:93. doi: 10.3389/fnut.2019.00093. eCollection 2019. Front Nutr. 2019. PMID: 31316992 Free PMC article. Review.
Infants and children from deficient mothers and elderly people are at risk for vitamin B12 deficiency. Diagnosis of vitamin B12 deficiency is hampered by low specificity of available biomarkers, and there is no consensus yet regarding the optimal defin …
Infants and children from deficient mothers and elderly people are at risk for vitamin B12 deficiency. Diagnosis of vitamin
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