2 results match your criteria: "Pontifical Catholic University of Rio Grande do Sul (PUCRS) School of Medicine[Affiliation]"

When to test for COVID-19 using real-time reverse transcriptase polymerase chain reaction: a systematic review.

Int J Infect Dis

October 2022

Brain Institute of Rio Grande do Sul (BraIns), Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, Brazil; Graduate Program in Biomedical Gerontology, Institute of Geriatrics and Gerontology, Pontifical Catholic University of Rio Grande do Sul (PUCRS) School of Medicine, Porto Alegre, Brazil; Graduate Program in Pediatrics and Child Health, Pontifical Catholic University of Rio Grande do Sul (PUCRS) School of Medicine, Porto Alegre, Brazil. Electronic address:

Objectives: The aim of this study was to evaluate the time in days between symptom onset and first positive real-time reverse transcriptase polymerase chain reaction (RT-PCR) result for COVID-19.

Methods: This systematic review was conducted in the MEDLINE (PubMed), Embase, and Scopus databases using the following descriptors: "COVID-19", "SARS-CoV-2", "coronavirus", "RT-PCR", "real time PCR", and "diagnosis".

Results: The included studies were conducted in 31 different countries and reported on a total of 6831 patients.

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Introduction: Gene-expression signatures for prognosis have been reported in localized renal cell carcinoma (RCC). The aim of this study was to test the predictive power of two different signatures, ClearCode34, a 34-gene signature model [Eur Urol 2014;66:77-84], and an 8-gene signature model [Eur Urol 2015;67:17-20], in the setting of systemic therapy for metastatic disease.

Materials And Methods: Metastatic RCC (mRCC) patients from five institutions who were part of TCGA were identified and clinical data were retrieved.

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