Original sentence: Alternative medicine researcher Edzard Ernst has opined that clinical trials into gua sha "just show how remarkable placebo-effects can be, particularly if the treatment is exotic, impressive, involves physical touch, is slightly painful and raises high expectations.Any apparent benefit from gua sha is due to the placebo effect.Gua sha (), kerokan or coining, is part of traditional Chinese medicine (TCM).Its practitioners use a tool to scrape people's skin to cause tissue damage in the belief this has medicinal benefit.The treatment has also been called the descriptive French name, tribo-effleurage
Edited sentence: Alternative medicine researcher Edzard Ernst has opined that any apparent benefit from gua sha is due to the placebo effect.Gua sha (), kerokan or coining, is a therapy of traditional Chinese medicine (TCM).He further opined that clinical trial into gua sha "just show how remarkable placebo-effects can be, particularly if the treatment is exotic, impressive, involves physical touch, is slightly painful and raises high expectations.Its practitioners use a tool together with a lubricating lotion to scrape people's skin to cause tissue damage in the theory of this has medicinal healing benefit.The symptomatic treatment has also been called the descriptive French name, tribo-effleurage