"We do not have a lot of controlled trials but," suggests Keith Bjork, MD, an orthopedist in Amarillo, TX, who may have presented stem cell treatments to about 500 individuals with knee arthritis prior to now 5 yrs. "Their outcomes tend to be the strongest proof," he suggests. Joana Canals http://coloradostemcellcenter05373.bloguetechno.com/5-Easy-Facts-About-advanced-stem-cell-therapy-Described-26766220