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Draws inferences from a sample to a population where the independent variable is not under the control of the researcher because of ethical concerns or logistical constraints.
Methods: A national CSD surveillancestudy is conducted in Israel since 1991.
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A long term surveillancestudy could hold the clues to developing a Covid-19 vaccine.
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A large surveillancestudy on antimicrobial prescribing appropriateness in different hospital settings is warranted.
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Design: We conducted a 15-year prospective surveillancestudy of all invasive pneumococcal infections in children.
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The authors evaluated the effectiveness and safety of bimatoprost using an open-label, non-comparative, three-month, community-based surveillancestudy.
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Methods: Data were obtained from a detailed demographic and geographic surveillancestudy in four villages on the Myanmar-Thailand border.
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Conclusion: This postmarketing surveillancestudy suggests diagnostic efficacy and a favorable clinical safety profile of Gd-DOTA in clinical practice.
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Design: A nationwide surveillancestudy.
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To address the limited clinical experience in Japanese patients, a post-approval surveillancestudy was undertaken in bevacizumab-treated patients in Japan.
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A surveillancestudy was undertaken to examine the population dynamics and antimicrobial resistance of Mannheimia haemolytica isolated from feedlot cattle.
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The potential causal relationship with humidifier disinfectants was examined by a prospective surveillancestudy after humidifier disinfectant sales were suspended.
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We conducted a multicenter surveillancestudy to investigate recent trends in species distribution and antifungal susceptibility patterns among IC-associated Candida spp.
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Methods: We analyzed data from a population-based surveillancestudy conducted in Guatemala from 2008 through 2013.
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Study design: A prospective surveillancestudy was carried out in Bologna, Italy, from November 2000 to March 2006.
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We analyzed 5,734 complete occupational histories obtained by telephone interview as part of an ongoing occupational cancer surveillancestudy.
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As part of the clearance, the company agreed to a post-market surveillancestudy to monitor the safety of bovine thrombin as used in the gel.