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doi: 10.1210/endocr/bqab079 91 ZhuXLinCLiLHuSCaiXJiL
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A significantly lower price may indicate differences in: Quality-control procedures Analytical testing Documentation Packaging standards Customer support Instead of comparing price alone, laboratories should consider the overall value provided through reliable documentation, consistent quality, and responsive service
10.1016/S0140-6736(08)60269-X 32
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