Røraas, Thomas

The Biological Variation Data Critical Appraisal Checklist: A Standard for Evaluating Studies on Biological Variation

Aarsand, A. K., Røraas, T., Fernandez-Calle, P., Ricos, C., Díaz-Garzón, J., Jonker, N., Perich, C., González-Lao, E., Carobene, A., Minchinela, J., et al. (2018) · Clinical Chemistry

Clinical Laboratory Practices and Quality ControlMeta-analysis and systematic reviews

Cited by 233

A checklist for critical appraisal of studies of biological variation

Bartlett, W. A., Braga, F., Carobene, A., Coşkun, A., Prusa, R., Fernandez-Calle, P., Røraas, T., Jonker, N., Sandberg, S., & Variati, O. B. O. T. B. (2015) · Clinical Chemistry and Laboratory Medicine (CCLM)

Clinical Laboratory Practices and Quality ControlMeta-analysis and systematic reviews

Cited by 151

Confidence Intervals and Power Calculations for Within-Person Biological Variation: Effect of Analytical Imprecision, Number of Replicates, Number of Samples, and Number of Individuals

Røraas, T., Petersen, P. H., & Sandberg, S. (2012) · Clinical Chemistry

Clinical Laboratory Practices and Quality ControlReliability and Agreement in Measurement

Cited by 134

Sample collections from healthy volunteers for biological variation estimates’ update: a new project undertaken by the Working Group on Biological Variation established by the European Federation of Clinical Chemistry and Laboratory Medicine

Carobene, A., Strollo, M., Jonker, N., Barla, G., Bartlett, W. A., Sandberg, S., Sylte, M. S., Røraas, T., Sølvik, U. Ø., Fernandez-Calle, P., et al. (2016) · Clinical Chemistry and Laboratory Medicine (CCLM)

Clinical Laboratory Practices and Quality ControlScientific Measurement and Uncertainty Evaluation

Cited by 110

The EuBIVAS: Within- and Between-Subject Biological Variation Data for Electrolytes, Lipids, Urea, Uric Acid, Total Protein, Total Bilirubin, Direct Bilirubin, and Glucose

Aarsand, A. K., Díaz-Garzón, J., Fernandez-Calle, P., Guerra, E., Locatelli, M., Bartlett, W. A., Sandberg, S., Røraas, T., Ceriotti, F., Sølvik, U. Ø., et al. (2018) · Clinical Chemistry

Clinical Laboratory Practices and Quality ControlScientific Measurement and Uncertainty Evaluation

Cited by 105

The EuBIVAS Project: Within- and Between-Subject Biological Variation Data for Serum Creatinine Using Enzymatic and Alkaline Picrate Methods and Implications for Monitoring

Carobene, A., Marino, I., Coşkun, A., Serteser, M., Unsal, I., Guerra, E., Bartlett, W. A., Sandberg, S., Aarsand, A. K., Sylte, M. S., et al. (2017) · Clinical Chemistry

Clinical Laboratory Practices and Quality ControlScientific Measurement and Uncertainty Evaluation

Cited by 77

Biological Variation Estimates Obtained from 91 Healthy Study Participants for 9 Enzymes in Serum

Carobene, A., Røraas, T., Sølvik, U. Ø., Sylte, M. S., Sandberg, S., Guerra, E., Marino, I., Jonker, N., Barla, G., Bartlett, W. A., et al. (2017) · Clinical Chemistry

Clinical Laboratory Practices and Quality ControlScientific Measurement and Uncertainty Evaluation

Cited by 63

Biological variation estimates for prostate specific antigen from the European Biological Variation Study; consequences for diagnosis and monitoring of prostate cancer

Carobene, A., Guerra, E., Locatelli, M., Cucchiara, V., Briganti, A., Aarsand, A. K., Coşkun, A., Díaz-Garzón, J., Fernandez-Calle, P., Røraas, T., et al. (2018) · Clinica Chimica Acta

Clinical Laboratory Practices and Quality ControlProstate Cancer Diagnosis and Treatment

Cited by 47

Harmonization initiatives in the generation, reporting and application of biological variation data

Aarsand, A. K., Røraas, T., Bartlett, W. A., Coşkun, A., Carobene, A., Fernandez-Calle, P., Jonker, N., Díaz-Garzón, J., Braga, F., & Sandberg, S. (2018) · Clinical Chemistry and Laboratory Medicine (CCLM)

Clinical Laboratory Practices and Quality ControlScientific Measurement and Uncertainty Evaluation

Cited by 46

Biological variation – reliable data is essential

Aarsand, A. K., Røraas, T., & Sandberg, S. (2015) · Clinical Chemistry and Laboratory Medicine (CCLM)

Clinical Laboratory Practices and Quality ControlScientific Measurement and Uncertainty Evaluation

Cited by 36

Estimates of Within-Subject Biological Variation of Protein C, Antithrombin, Protein S Free, Protein S Activity, and Activated Protein C Resistance in Pregnant Women

Kristoffersen, A. H., Petersen, P. H., Røraas, T., & Sandberg, S. (2017) · Clinical Chemistry

Blood Coagulation and Thrombosis MechanismsClinical Laboratory Practices and Quality Control

Cited by 27