This download (by Keith Conover, M.D. – a highly respected Wilderness pro) is about as good a start to building a quality Med Kit (First Response to Physician level training) as can be found in 23 pages.
Right here – http://www.wemsi.org/pwm201.pdf
More EMS info – http://www.wemsi.org/medkit_docs.html
Keith’s pages – http://www.pitt.edu/~kconover/index.htm#top