Department of Nursing;
Taipei Veterans General Hospital;
Taipei City 11217;
Taiwan;
China;
School of Nursing;
National Taipei University of Nursing and Health Sciences;
Taipei City 11219;
Taiwan;
China;
Center for Traditional Medicine;
Taipei Veterans General Hospital;
Taipei City 11217;
Taiwan;
China;
Scool of Nursing;
National Taipei University of Nursing and Health Sciences and School of Medicine;
Taipei City 11217;
Taiwan;
China;
Acupuncture; Morphine; Low-level laser; Older patients; Osteoarthritis; Pain; Total knee arthroplasty; Randomized controlled trial;