Activity Listings
- Letter from G. N. Schrauzer to Dr. Norman G. Brink (cc: LP) RE: Shares LP's interest in a rapid, sensitive assay method of vitamin B12, preferably not a microbiological one and asks if Brink knows of one. Also, asks Brink to share with LP the minimum daily requirement of vitamin B12 [Filed under LP Science: Box 11.079, Folder 79.1]
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