Descriptive characteristics of studies participating in meta-analysis.*
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*Values are mean (standard deviation) for age and caffeine; percent for female and current smokers.**Includes samples from prostate cancer case-control (n = 1885), bladder cancer case-control (n = 572), glioma case-control (n = 3), lung cancer case-control (n = 1758), pancreatic cancer case-control (n = 299), renal cancer case-control study (n = 271).
创建时间：
2015-12-02
