Reference for dataset colon (package survival)
On Jan 17, 2012, at 11:10 AM, David Winsemius wrote:
On Jan 17, 2012, at 10:48 AM, Matthias Gondan wrote:
Dear R team, dear Prof. Therneau, library(survival) data(colon) ?colon gives me only a very rudimentary source (only a name). Is there a possibility to get a reference to the clinical trial these data are taken from?
Wouldn't this seem to be the most promising place to look? http://www.ncbi.nlm.nih.gov/pubmed?term=lin%20d[au]%205-fu %20levamisole%20colon%20cancer
Further evidence that searching can be effective: -------------- next part -------------- A non-text attachment was scrubbed... Name: Lin.first.example.pdf Type: application/pdf Size: 42000 bytes Desc: not available URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20120117/fb8a3151/attachment.pdf> -------------- next part -------------- -------------- next part -------------- A non-text attachment was scrubbed... Name: Citations.for.colon.pdf Type: application/pdf Size: 42834 bytes Desc: not available URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20120117/fb8a3151/attachment-0001.pdf> -------------- next part -------------- I have had variable success with my mail client preserving pdf images, but If it turns out that these are unreadable then I can affirm that the example described matches the ?colon description very well and one only needs to search Google Scholar for copies of that classic work that appears here in full text albeit a dirty image: http://www.bios.unc.edu/~lin/publications/1994/Lin94.pdf
David Winsemius, MD West Hartford, CT