addendum

[Steve J. Upton]

I noticed that a couple of the URLs I sent had type-Os.  That's because
I scanned a class handout using an OCR package, dumped it onto the
newsgroup, and missed a couple of the type-Os.

http://www.enhancedhealth.com/parasites.htm
http://www.drchiro.com/h20.html
http://www.interking.com/m/l/HealthyLife.html
http://www.jetstream.net/business/zapper/

Hopefully, none of these will have type-Os.