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1
A simple cup assay of vitamin B12.
Sven Farm Tidskr. 1952 Mar 20;56(8):169-70.
2
Response to an assay of vitamin B12 by a mutant Escherichia coli.
Proc Soc Exp Biol Med. 1953 Jul;83(3):448-53. doi: 10.3181/00379727-83-20382.
3
The influence of thiamine on the microbiological assay for vitamin B12 with Escherichia coli 113-3.
J Am Pharm Assoc Am Pharm Assoc. 1955 Oct;44(10):594-8. doi: 10.1002/jps.3030441004.
4
The influence of the composition of the medium on the potency of vitamin B12-active factors in a tube assay with Escherichia coli mutant.
Aust J Exp Biol Med Sci. 1958 Feb;36(1):5-9. doi: 10.1038/icb.1958.2.
5
Microbiological assay of vitamin B12.
Methods Biochem Anal. 1954;1:81-113. doi: 10.1002/9780470110171.ch4.
6
[Certain modifications of titration of vitamin B12 on solid medium with the use of E. coli 113/3].
Boll Ist Sieroter Milan. 1956 Jul-Aug;35(7-8):368-72.
7
The microbiological determination of vitamin B12 utilizing a mutant strain of Escherichia coli.
J Am Pharm Assoc Am Pharm Assoc. 1954 Aug;43(8):474-7. doi: 10.1002/jps.3030430809.
8
A differential microbiological assay for vitamin B12 and pseudovitamin B12.
Appl Microbiol. 1956 Jan;4(1):49-52. doi: 10.1128/am.4.1.49-52.1956.
9
The six-point design in the U.S.P. microbiological assay of vitamin B12.
J Am Pharm Assoc Am Pharm Assoc. 1953 May;42(5):276-83. doi: 10.1002/jps.3030420503.
10
Microbiological assay of vitamin B12 with a mutant strain of Escherichia coli.
Appl Microbiol. 1953 Jan;1(1):42-6. doi: 10.1128/am.1.1.42-46.1953.
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