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Home ovulation tests and stress in women trying to conceive: a randomized controlled trial
Download from www.ncbi.nlm.nih.govTutorial in biostatistics: Sample sizes for parallel group clinical trials with binary data
Download from www.researchgate.netOutdoor Air Pollution and Incidence of Ischemic and Hemorrhagic Stroke
Download from www.researchgate.netWhat is a pilot or feasibility study? A review of current practice and editorial policy.
Download from dx.doi.orgAssessing quality of care from hospital case notes: Comparison of reliability of two methods
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