The relationship between 63 days of 24-h urinary free cortisol and hair cortisol levels in 10 healthy individuals

Forming inferences about some intraclass correlation coefficients.

Kenneth O. McGraw, S. P. Wong · Psychological Methods · 1996 · 6.7K citations

Natural Sciences, Biostatistics, Psychology +10

Serum Creatinine as an Index of Renal Function: New Insights into Old Concepts

Ronald D. Perrone, Nicolaos E. Madias, Andrew S. Levey · Clinical Chemistry · 1992 · 1.6K citations

Pharmacy, Biochemistry, Nephrology +16

Calculating correlation coefficients with repeated observations: Part 2—correlation between subjects

J Martin Bland, Douglas G. Altman · BMJ · 1995 · 1.1K citations · Full text

Public Health, Biostatistics, Individual Differences +15

Analysis of endogenous cortisol concentrations in the hair of rhesus macaques

Matthew D. Davenport, Stefan Tiefenbacher, Corrine K. Lutz et al. · General and Comparative Endocrinology · 2006 · 659 citations

Medicine, Endocrinology, Physiology +9

Measurement of cortisol in human Hair as a biomarker of systemic exposure

Gideon Koren, Grace Walsh, Sonya Tokmakejian et al. · Clinical and investigative medicine · 2007 · 589 citations · Full text

Pharmacy, Endocrinology, Toxicology +16