Long-Gang Zhao

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BACKGROUND Epidemiological studies have reported inconsistent association between obesity and risk of bladder cancer, and the dose-response relationship between them has not been clearly defined. METHODS We carried out a meta-analysis to summarize available evidence from epidemiological studies on this point. Relevant articles were identified by searching(More)
Observational studies evaluating the relation between dietary or circulating level of beta-carotene and risk of total mortality yielded inconsistent results. We conducted a comprehensive search on publications of PubMed and EMBASE up to 31 March 2016. Random effect models were used to combine the results. Potential publication bias was assessed using(More)
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