Original sentence: A 2004 Cochrane Review initially concluded that acupuncture appeared to be more effective than antiemetic drugs in treating postoperative nausea and vomiting, but the authors subsequently retracted this conclusion due to a publication bias in Asian countries that had skewed their results.An updated Cochrane Review published in 2009 concluded that penetrative or non-penetrative stimulation of the P6 acupuncture point was approximately equal to, but not better than, preventive antiemetic drugs for postoperative nausea and vomiting.Another Cochrane Review concluded that electroacupuncture can be helpful in the treatment of vomiting after the start of chemotherapy, but more trials were needed to test their effectiveness versus modern antivomiting medication.Evidence for the treatment of psychological conditions other than pain is equivocal.Systematic reviews have concluded that acupuncture is no more effective than nonpenetrating stimulation of one point to reduce some types of nausea
Edited sentence: A 2007 reviewe concluded that evidence for the treatment of psychological conditions other than pain is equivocal.A 2008 Cohrane review found that acupuncture treats post-operative nausea and vomiting as well as anti-emetic drugs, with minimal side effects.It was found to be equally effective in adults and children.Publication bias was found to be minimal in studies analyzed in this review.Systematic reviews have concluded that needling and nonpenetrating stimulation of one particular acupuncture point (P6) are equally effective in treating some types of nausea