Cholecalciferol is produced by irradiation of 7-dehydrocholesterol with ultraviolet light either from the sun or from an artificial source.
胆钙化
7?
氢胆固经日光或人工来源的紫
线照射而产生的。
线Cholecalciferol is produced by irradiation of 7-dehydrocholesterol with ultraviolet light either from the sun or from an artificial source.
胆钙化7?氢胆固经日光或人工来源的紫线照射而产生的。
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