SA Directory
This user contributed directory and portal is organized by subject, and categories include Bulletin Boards, Health including prolotherapy, Culture & Society, and so on. You may add your URL here as well.

Net4any Resources
This is a web portal and human edited directory featuring a number of relative categories such as Travel & Tourism, society & education, sports medicone, recreation, health and medical including prolotherapy. You may add your url here to an appropriate category.

Prolotherapy
Doctor MArc Darrow specializes in Platelet Rich Plasma Therapy or PRP injections as well as sports medicine including prolotherapy treatments, which is being used by many top athletes nowadays.