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1886 2
1887 8
1888 5
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1891 2
1892 1
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1894 8
1895 4
1896 7
1897 4
1898 3
1899 6
1900 4
1901 7
1902 4
1903 5
1904 2
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1906 5
1907 7
1908 9
1909 13
1910 8
1911 9
1912 8
1913 6
1914 12
1915 4
1916 8
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1918 8
1919 4
1920 11
1921 9
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1924 14
1925 14
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501,632 results

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Page 1
Risk prediction models: II. External validation, model updating, and impact assessment.
Moons KG, Kengne AP, Grobbee DE, Royston P, Vergouwe Y, Altman DG, Woodward M. Moons KG, et al. Heart. 2012 May;98(9):691-8. doi: 10.1136/heartjnl-2011-301247. Epub 2012 Mar 7. Heart. 2012. PMID: 22397946 Review.
To these ends, developed models first and foremost need to provide accurate and (internally and externally) validated estimates of probabilities of specific health conditions or outcomes in the targeted individuals. ...In this second paper, an overview is provided of the c …
To these ends, developed models first and foremost need to provide accurate and (internally and externally) validated estimates of pr …
External cephalic version.
Coco AS, Silverman SD. Coco AS, et al. Am Fam Physician. 1998 Sep 1;58(3):731-8, 742-4. Am Fam Physician. 1998. PMID: 9750541 Free article. Review.
External cephalic version is a procedure that externally rotates the fetus from a breech presentation to a vertex presentation. External version has made a resurgence in the past 15 years because of a strong safety record and a success rate of about 65 percen …
External cephalic version is a procedure that externally rotates the fetus from a breech presentation to a vertex presentation …
External validation of existing dementia prediction models on observational health data.
John LH, Kors JA, Fridgeirsson EA, Reps JM, Rijnbeek PR. John LH, et al. BMC Med Res Methodol. 2022 Dec 5;22(1):311. doi: 10.1186/s12874-022-01793-5. BMC Med Res Methodol. 2022. PMID: 36471238 Free PMC article. Review.
Externally validating an existing prediction model is a difficult task, where we mostly rely on the completeness of model reporting in a published article. In this study, we aim to externally validate existing dementia prediction models. To that end, we define model …
Externally validating an existing prediction model is a difficult task, where we mostly rely on the completeness of model reporting i …
External Validations of Cardiovascular Clinical Prediction Models: A Large-Scale Review of the Literature.
Wessler BS, Nelson J, Park JG, McGinnes H, Gulati G, Brazil R, Van Calster B, van Klaveren D, Venema E, Steyerberg E, Paulus JK, Kent DM. Wessler BS, et al. Circ Cardiovasc Qual Outcomes. 2021 Aug;14(8):e007858. doi: 10.1161/CIRCOUTCOMES.121.007858. Epub 2021 Aug 3. Circ Cardiovasc Qual Outcomes. 2021. PMID: 34340529 Free PMC article. Review.
However, the extent to which they have been externally tested, and how well they generally perform has not been broadly evaluated. METHODS: A SCOPUS citation search was run on March 22, 2017 to identify external validations of cardiovascular CPMs in the Tufts Predic …
However, the extent to which they have been externally tested, and how well they generally perform has not been broadly evaluated. ME …
Reconceptualising the external validity of discrete choice experiments.
Lancsar E, Swait J. Lancsar E, et al. Pharmacoeconomics. 2014 Oct;32(10):951-65. doi: 10.1007/s40273-014-0181-7. Pharmacoeconomics. 2014. PMID: 24920196 Review.
While an important component, we argue that the investigation of external validity should be much broader than a comparison of final outcomes. In doing so, we introduce a new and more comprehensive conceptualisation of external validity, closely linked to process va …
While an important component, we argue that the investigation of external validity should be much broader than a comparison of final …
External validation of AI-based scoring systems in the ICU: a systematic review and meta-analysis.
Rockenschaub P, Akay EM, Carlisle BG, Hilbert A, Wendland J, Meyer-Eschenbach F, Näher AF, Frey D, Madai VI. Rockenschaub P, et al. BMC Med Inform Decis Mak. 2025 Jan 6;25(1):5. doi: 10.1186/s12911-024-02830-7. BMC Med Inform Decis Mak. 2025. PMID: 39762808 Free PMC article.
We systematically reviewed how regularly external validation of ML-based risk scores is performed and how their performance changed in external data. ...On average, AUROC was reduced by -0.037 (95% CI -0.052 to -0.027) in external data, with more than 0.05 re …
We systematically reviewed how regularly external validation of ML-based risk scores is performed and how their performance changed i …
External Field-Controlled Ablation: Magnetic Field.
Maksimovic J, Ng SH, Katkus T, Cowie BCC, Juodkazis S. Maksimovic J, et al. Nanomaterials (Basel). 2019 Nov 22;9(12):1662. doi: 10.3390/nano9121662. Nanomaterials (Basel). 2019. PMID: 31766656 Free PMC article.
Ultra-short 230 fs laser pulses of 1030 nm wavelengths were utilised in the single and multi-pulse irradiation modes. Ablation with an externally applied magnetic B-field B e x t 0.15 T was shown to strongly affect debris formation and deposition. The mechanism of surface …
Ultra-short 230 fs laser pulses of 1030 nm wavelengths were utilised in the single and multi-pulse irradiation modes. Ablation with an ex …
Availability and reporting quality of external validations of machine-learning prediction models with orthopedic surgical outcomes: a systematic review.
Groot OQ, Bindels BJJ, Ogink PT, Kapoor ND, Twining PK, Collins AK, Bongers MER, Lans A, Oosterhoff JHF, Karhade AV, Verlaan JJ, Schwab JH. Groot OQ, et al. Acta Orthop. 2021 Aug;92(4):385-393. doi: 10.1080/17453674.2021.1910448. Epub 2021 Apr 18. Acta Orthop. 2021. PMID: 33870837 Free PMC article.
Background and purpose - External validation of machine learning (ML) prediction models is an essential step before clinical application. We assessed the proportion, performance, and transparent reporting of externally validated ML prediction models in orthopedic su …
Background and purpose - External validation of machine learning (ML) prediction models is an essential step before clinical applicat …
Dissociating external and internal attentional selection.
Arora K, Gayet S, Kenemans JL, Van der Stigchel S, Chota S. Arora K, et al. iScience. 2025 Mar 25;28(4):112282. doi: 10.1016/j.isci.2025.112282. eCollection 2025 Apr 18. iScience. 2025. PMID: 40248115 Free PMC article.
Thus, we asked whether internal attention-akin to external attention-modulates sensory processing. In two EEG experiments, we compared location-specific sensory enhancements during attentional selection of external (perceived) versus internal (memorized) stimuli. .. …
Thus, we asked whether internal attention-akin to external attention-modulates sensory processing. In two EEG experiments, we compare …
How to Examine External Validity Within an Experiment.
Kowalski AE. Kowalski AE. J Econ Manag Strategy. 2023 Fall;32(3):491-509. doi: 10.1111/jems.12468. Epub 2022 Jan 31. J Econ Manag Strategy. 2023. PMID: 38828383 Free PMC article.
A fundamental concern for researchers who analyze and design experiments is that the estimate obtained from the experiment might not be externally valid for other policies of interest. Researchers often attempt to assess external validity by comparing data from an e …
A fundamental concern for researchers who analyze and design experiments is that the estimate obtained from the experiment might not be e …
501,632 results
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