good material thanks http://www.emsjobs.co/nitroglycerin/ order nitroglycerin  The researchers said that experts should make a concerted effort to tell families about the possible negative effects of spanking and teach them appropriate discipline methods like positive parenting. Dr. Dyan Hes, who works with Gramercy Pediatrics, suggested to CBS News that positive reinforcement, limited use of time outs and discussing bad behavior could be other options. Parents should also take a breather before resorting to spanking their children.