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Books about Yakazu:
Gunmei ihan "gunki wa yakazu": Rikugun henkotsu taicho shuki (Japanese Edition) by Shiro Goto (1991)
Wiki information Yakazu:
Dōmei Yakazu was a Japanese physician who contributed to the restoration of kampo medicine in Japan. In 1979, he was awarded the lifetime achievement award 最高優功賞 by the Japanese Medical Association for his contributions to oriental medicine.