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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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Melioidosis risk was estimated using Bayesian evidence synthesis of 12 observationalstudies.
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Studies included randomized clinical trials, observationalstudies, guideline statements, and review articles.
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Design: Systematic review and meta-analysis of randomised controlled trials and observationalstudies.
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Most observationalstudies of CRP and cardiovascular disease have been in Europeans.
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The adipocyte-secreted protein adiponectin is associated with insulin sensitivity in observationalstudies.
Использование термина observational study на английском
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Methods: Prospective population-based observationalstudy evaluating daily clinical practice in Northern Holland.
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We illustrate our new methodology using data from a longitudinal observationalstudy.
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Design: A prospective observationalstudy in a homogeneous population with nonspecific complaints.
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Design and setting: Prospective observationalstudy in university hospital intensive care units.
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Methods: Peruvians initiating first-line ART were enrolled in a prospective observationalstudy.
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We included 31 patients having POEM in this single-center prospective observationalstudy.
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Methods and analyses: A cross-sectional, descriptive and observationalstudy will be conducted.
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We performed an observationalstudy among patients of a tertiary headache clinic.
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One 2015 observationalstudy analysed the behaviour of medical students in Australia.
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Methods: This was a retrospective observationalstudy at a tertiary care center.
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This was a two-case observationalstudy involving NH residents with advanced dementia.
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Methods: A multicentre prospective observationalstudy enrolled patients undergoing assessment for possible ACS.
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Method: Prospective observationalstudy of 121 medical students taking the final licensing exam.
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Design: Multi-site, prospective, observationalstudy of 338 adults entering substance use disorder treatment.
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Materials and methods: This observationalstudy included 418 patients with IS or TIA.
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Methods: This was a prospective observationalstudy with two time points.