参考文献
Butenandt; Tscherning
Hoppe-Seyler's Zeitschrift fuer Physiologische Chemie, 1934 , vol. 229, p. 185,190
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Heard; McKay
Journal of Biological Chemistry, 1939 , vol. 131, p. 371,378
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Reichstein
Helvetica Chimica Acta, 1936 , vol. 19, p. 979,983