| 304 | Qualitative content analysis in nursing research: concepts, procedures and measures to achieve trustworthiness | |
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| 2004/02/01 | English | 11,421 |
| 334 | The qualitative content analysis process | |
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| 2008/03/18 | English | 10,860 |
| 358 | Critical evaluation of the Newcastle-Ottawa scale for the assessment of the quality of nonrandomized studies in meta-analyses | |
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| 2010/07/22 | English | 10,514 |
| 551 | Preferred Reporting Items for Systematic Reviews and Meta-Analyses: The PRISMA Statement | |
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| 2009/10/01 | English | 8,480 |
| 620 | Adapting a clinical comorbidity index for use with ICD-9-CM administrative databases | |
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| 1992/06/01 | English | 7,917 |
| 682 | The PRISMA statement for reporting systematic reviews and meta-analyses of studies that evaluate health care interventions: explanation and elaboration | |
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| 2009/10/01 | English | 7,501 |
| 705 | The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) statement: guidelines for reporting observational studies | |
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| 2008/04/01 | English | 7,371 |
| 859 | Quality criteria were proposed for measurement properties of health status questionnaires | |
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| 2007/01/01 | English | 6,622 |
| 1018 | GRADE guidelines: 1. Introduction—GRADE evidence profiles and summary of findings tables | |
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| 2011/04/01 | English | 6,056 |
| 1184 | Immediate Psychological Responses and Associated Factors during the Initial Stage of the 2019 Coronavirus Disease (COVID-19) Epidemic among the General Population in China | |
- Geography. Anthropology. Recreation: Environmental sciences
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| 2020/03/06 | English | 5,608 |
| 1520 | GRADE guidelines: 3. Rating the quality of evidence | |
- Medicine: Internal medicine: Special situations and conditions: Industrial medicine. Industrial hygiene
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| 2011/04/01 | English | 4,933 |
| 1577 | Nanotoxicology: An Emerging Discipline Evolving from Studies of Ultrafine Particles | |
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| 2005/07/01 | English | 4,834 |
| 1645 | Validation of a combined comorbidity index | |
- Medicine: Internal medicine: Special situations and conditions: Industrial medicine. Industrial hygiene
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| 1994/11/01 | English | 4,704 |
| 1685 | A SIMPLE METHOD OF ESTIMATING FIFTY PER CENT ENDPOINTS12 | |
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| 1938/05/01 | English | 4,636 |
| 1749 | The integrative review: updated methodology | |
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| 2005/11/02 | English | 4,534 |
| 2025 | The Transtheoretical Model of Health Behavior Change | |
- Medicine: Internal medicine: Special situations and conditions: Industrial medicine. Industrial hygiene
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| 1997/09/01 | English | 4,184 |
| 2178 | Health Promotion by Social Cognitive Means | |
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| 2004/04/01 | English | 4,026 |
| 2423 | Mendelian randomization with invalid instruments: effect estimation and bias detection through Egger regression | |
- Medicine: Internal medicine: Special situations and conditions: Industrial medicine. Industrial hygiene
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| 2015/04/01 | English | 3,795 |
| 2511 | The Discovery of Grounded Theory; Strategies for Qualitative Research | |
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| 1968/07/01 | English | 3,730 |
| 2595 | Updating and Validating the Charlson Comorbidity Index and Score for Risk Adjustment in Hospital Discharge Abstracts Using Data From 6 Countries | |
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| 2011/02/17 | English | 3,679 |