How much of a difference does it take to make a difference.
Freedman
Robert R
RR
D015670:Acupuncture Therapy / Q000379:methods*; D000368:Aged; D005260:Female; D019584:Hot Flashes / Q000628:therapy*; D006801:Humans; D008875:Middle Aged; D010865:Pilot Projects; D015990:Placebo Effect; D017698:Postmenopause; D012893:Sleep Wake Disorders / Q000517:prevention & control; D016896:Treatment Outcome