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尿中有何物?作者:曾焯文(Chapman Chen, HKBNews)

尿,95%是水,2.5%是尿素,2.5%是礦物,乃係鹽、激素和酶的混合物,並非有毒廢物產物。尿是經過濾血清,即血液副產品,儘管含有一些人體廢物,但無毒。美國生物化學家伉儷Alfred H. Free, Helen M. Free一九七五年出版Urinalysis in...

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