You sounded like my H who's well read, but.....:)))

来源: -worldance- 于 2018-08-01 08:38:19 [] [旧帖] [给我悄悄话] 阅读数 : (178 bytes)

I hate to give people "lessons" in molecular biology of carcinogenesis and world wide statistics of colorectal cancer.  It's boring, trust me, haha.

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