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Journal Article Studies on the Free Amino Acids and Related Compounds in the Brains of Fish, Amphibia, Reptile, Aves and Mammal by ion Exchange Chromatography Get access Nikichi Okumura, Nikichi Okumura From the Department of Neuro-Psychiatry, Okayama University Medical School, Okayama Search for other works by this author on: Oxford Academic PubMed Google Scholar Saburo Otsuki, Saburo Otsuki From the Department of Neuro-Psychiatry, Okayama University Medical School, Okayama Search for other works by this author on: Oxford Academic PubMed Google Scholar Tatsuya Aoyama Tatsuya Aoyama From the Department of Neuro-Psychiatry, Okayama University Medical School, Okayama Search for other works by this author on: Oxford Academic PubMed Google Scholar The Journal of Biochemistry, Volume 46, Issue 2, February 1959, Pages 207–212, https://doi.org/10.1093/jb/46.2.207 Published: 01 February 1959 Article history Received: 07 April 1958 Published: 01 February 1959
Okumura et al. (Sun,) studied this question.