http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=16326234&query_hl=5 I'm not sure if this is done in the US, but it appears promising for patients with cervicothoracic angina. I'm curious to know how "improvement" was quantified. Was it any increase in SF-36 scores? Did outcome measures correlate positively? No time to read the entire article. Foughtfyr, if you're willing to answer the questions above (destroy this study), that'd be great!