More likely related to where the samples were taken in

来源: -worldance- 于 2020-02-08 15:29:59 [] [旧帖] [给我悄悄话] 阅读数 : (92 bytes)

patient's bodies (especially in early stage) and the test methods/conditions.

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• samples taken from lower lungs give more accurate results. --worldance-- ♀ 给 -worldance- 发送悄悄话 (0 bytes) () 02/08/2020 postreply 15:44:34

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