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Blood barrier to 5-HTP.
Engelman K, Lovenberg W, Sjoerdsma A. Engelman K, et al. Among authors: sjoerdsma a. N Engl J Med. 1968 Feb 1;278(5):281. N Engl J Med. 1968. PMID: 5299837 No abstract available.
Further evaluation of the tyramine test for pheochromocytoma.
Engelman K, Horwitz D, Ambrose IM, Sjoerdsma A. Engelman K, et al. Among authors: sjoerdsma a. N Engl J Med. 1968 Mar 28;278(13):705-9. doi: 10.1056/NEJM196803282781304. N Engl J Med. 1968. PMID: 5638691 No abstract available.
278 results