A total of @ acupressure sessions , @ / wk for @ mo , were performed for all participants in the intervention group , as required by the acupressure application protocol , applying acupressure at the Stomach @ ( ST-@ ) , Gallbladder @ ( GB-@ ) , Spleen @ ( SP-@ ) , and Kidney @ ( K-@ ) acupuncture points with a transcutaneous electrical nerve stimulation ( TENS ) acupuncture pen ( XFT-@ acupuncture pen , Shenzhen Xunfegtong Electronics Co , Ltd , Shenzhen , China ) .