Blinding and allocation concealment
Both groups received the standard care of conventional management, with the intervention group received additional FASTEN intervention. They were explained about the intervention and asked for their consent. The researcher, who was aware of the group allocation of the patients, was not involved in the data collection process. To further preserve the effect of blinding, the data collection (through questionnaires) was done by trained medical assistants, and they were also unaware of the group allocation.