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. 1978 Dec;129(6):507–508.
Dr. Erhardt's letter was referred to Harold A. Harper, Phd, who replies as follows
Harold A Harper
1
Harold A Harper, PhD
1Graduate Division, University of California, San Francisco
Professor of Biochemistry, Dean
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1Graduate Division, University of California, San Francisco
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Harold A Harper: PhD, Professor of Biochemistry, Dean
PMCID: PMC1238457
See the letter "Concerning vitamins." on page 507a.