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Drawing Conclusions about Short-Term Variability in Liver Function Test Results
- Gaurav Arora, MD; and
- George Triadafilopoulos, MD
- From Stanford University School of Medicine, Stanford, CA 94304.
TO THE EDITOR:
We read with great interest the recent study by Lazo and colleagues (1) on the short-term variability of various biochemical liver tests and want to share some concerns. First, this study is based on a nonrandom, convenience sample that represents only 9.5% (1864 out of 19618) of the original NHANES (National Health and Nutrition Examination Survey) study population, raising questions about the generalizability of the findings, given the strong likelihood …
