4-Statistical analysis Each of the dependent measures of primary outcomes (Depression, Dyspnea, and Health-Related Quality of Life) was analyzed using a generalized linear mixed model (SAS Proc GLIMMIX, SAS 9.3) involving a single between subjects factor (Treatment vs. Control) and a single within subjects factor (Period - enrollment vs. follow up 6 weeks later) Test of Treatment Group differences at Enrollment and at 6 weeks were made using planned contrast on the Least-Square means.