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Additional file 1: Table S1. of Is caffeine intake a risk factor leading to infertility? A protocol of an epidemiological systematic review of controlled clinical studies

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posted on 2016-03-15, 05:00 authored by Huijuan Cao, Jun Ren, Xue Feng, Guoyan Yang, Jianping Liu
Data extraction form for randomized/quasi-randomized controlled trials or non-randomized clinical studies. (DOC 72 kb)

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Beijing University of Chinese Medicine

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