Randomization
STRUCK
One hundred and forty patients gave written informed consent for this study, based on the Declaration of Helsinki, and were randomly assigned to one of two groups: G‐ACT or control group. Two independent researchers who did not participate in assessing patients took charge of the randomization using the lottery method. Once a number has been selected, that particular number was struck off from the draw box. Sequentially numbered, opaque, sealed, and stapled envelopes were used to store the assignment results. The allocation process was concealed from other researchers who were responsible for assessing participants. The envelopes were opened only after the corresponding patient had completed the baseline assessment.