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Retrospective Studies

Known as: Study, Retrospective, Retrospective Study, RETROSPECTIVE 
A study that compares two groups of people: those with the disease or condition under study (cases) and a very similar group of people who do not… 
National Institutes of Health

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CDISC SDTM Observational Study Time Perspective TerminologyClinical Data Interchange Standards Consortium Terminologyexplanation

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Case-Control Studies

Papers overview

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Highly Cited
2017
Highly Cited
2017
The ALBI grade provides objective hepatic reserve estimation across each BCLC stage of hepatocellular carcinoma.
Highly Cited
2016
Highly Cited
2016
Hemoglobin A1c (HbA1c) changes over time among adolescent and young adult participants in the T1D exchange clinic registry
Hemoglobin A1c (HbA1c) levels among individuals with type 1 diabetes (T1D) influence the longitudinal risk for diabetes‐related… 
Review
2016
Review
2016
Persistence and switching patterns of oral migraine prophylactic medications among patients with chronic migraine: A retrospective claims analysis
Background Migraine prevention guidelines recommend oral prophylactic medications for patients with frequent headache. This study… 
Highly Cited
2014
Highly Cited
2014
Pretreatment circulating monocyte count associated with poor prognosis in patients with oral cavity cancer
The purpose of this study was to investigate whether the pretreatment total and differential leukocyte counts can predict the… 
Highly Cited
2014
Highly Cited
2014
Imaging in gynecological disease (10): clinical and ultrasound characteristics of decidualized endometriomas surgically removed during pregnancy
To describe the clinical history and ultrasound findings in women with decidualized endometriomas surgically removed during… 
Review
2013
Review
2013
Pretrauma risk factors for posttraumatic stress disorder: a systematic review of the literature.
Review
1997
Review
1997
Patient noncompliance after vasectomy.
Highly Cited
1993
Highly Cited
1993
Oral contraception and risk of a cerebral thromboembolic attack: results of a case-control study.
OBJECTIVE--To assess the risk of cerebral thromboembolism in women using low dose oral contraceptives. DESIGN--A retrospective… 
Highly Cited
1988
Highly Cited
1988
The life history calendar: a technique for collecting retrospective data.
"This paper details the authors' selection, design, and use of a life history calendar (LHC) to collect retrospective life course… 
Highly Cited
1978
Highly Cited
1978
Preventable anesthesia mishaps: a study of human factors*
A modified critical-incident analysis technique was used in a retrospective examination of the characteristics of human error and… 
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