In clinical practice, acupuncturists individualize treatment: two patients with a similar conventional diagnosis may receive different point prescriptions depending on the acupuncture differential diagnosis. Randomized trials of acupuncture can either prescribe a fixed treatment formula in terms of the number of sessions and points to be used, or allow practitioners to exercise clinical judgment in individualizing care. There has been considerable debate in the methodological literature about the merits of each approach. The use of a fixed treatment schedule increases the reproducibility of the findings but is said, by practitioners, to generally reduce treatment effectiveness. In this trial, we have developed an approach that allows practitioners to individualize treatments in a manner that allows exact replication, by specifying particular point locations to be used depending on the sites where a patient experiences pain. Point locations for this and for all of our acupuncture studies are determined by our licensed, credentialled acupuncturists.