a Refer to text and theNCI Dictionary of Cancer Termsfor additional information and definition of terms.
b Number of patients treated plus number of patient controls may not equal number of patients enrolled; number of patients enrolled equals number of patients initially considered by the researcher who conducted a study; number of patients treated equals number of enrolled patients who were given the treatment being studied AND for whom results were reported.
c Strongest evidence reported that the treatment under study has anticancer activity or otherwise improves the well-being of cancer patients.
d Concurrent therapy for symptoms treated (not cancer).
e For information about levels of evidence analysis and an explanation of the level of evidence scores, refer toLevels of Evidence for Human Studies of Cancer Complementary and Alternative Medicine.