内行
发表于 2025-3-26 21:12:57
estigations on the preparation of concentrates containing the Vitamin., with the object of isolating it and studying its chemical constitution, were undertaken by ZILVA (.). At each stage these required tedious and difficult biological assays of potency and in view of the intractable materials, subs
拖债
发表于 2025-3-27 04:26:44
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难解
发表于 2025-3-27 05:48:23
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喃喃诉苦
发表于 2025-3-27 10:11:07
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convert
发表于 2025-3-27 15:10:30
Jack Haywardthose reported for natural pigments from animal hair, melanoma, . black, ., implied that these natural pigments also were products of the tyrosine-tyrosinase reaction. An excellent, comprehensive, and detailed account of these pigments has been given by . (.) in his book, which includes references u
Gyrate
发表于 2025-3-27 19:55:47
David Howarthunds are powerful anti-tumor agents (., ., ., .). Bioactivities of the ansamycins have been reviewed extensively elsewhere (., ., ., ., ., .) and need not be exhaustively described here, although they will be noted in the section of this review dealing with reactions of individual antibiotics. Inste
智力高
发表于 2025-3-27 23:52:02
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Middle-Ear
发表于 2025-3-28 05:17:34
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雪白
发表于 2025-3-28 09:47:40
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带伤害
发表于 2025-3-28 14:16:29
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