Answers are grounded in this paper and cite their sources.
OBJECTIVE: To describe a method for deriving original data values from scanned images of graphs and scatterplots published in the medical literature. CONCLUSION: The procedure is simple, reproducible, and relatively error free (when performed carefully). This method is useful in converting published graphic material into numeric data for various uses when the original data are unavailable directly from the authors.
No takes yet. Share an insight, caveat, or question.
Sistrom et al. (2000) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: