The development of spectrophotometry: fortuitous inventions for steroid biochemistry.
Kochakian
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D008401:Gas Chromatography-Mass Spectrometry; D049673:History, 20th Century; D013053:Spectrophotometry; D013055:Spectrophotometry, Infrared; D013256:Steroids / Q000266:history*
D013256:Steroids