http://ozonetherapy.org/15.01.2010/a-comparativestudy-of-%d0%b0-bactericidal-activity-of-ozonized-soluyions-during-treatment-of-inflammatory-diseases-of-paradontium/ and manufacturers of equipment for ozone therapy Sat, 19 May 2012 00:20:52 +0000 http://wordpress.org/?v=2.0.9