- Participants would be recruited from all of five full-time undergraduate nursing programs in School of Nursing of The University. After their eligibility for inclusion checked and baseline measurement performed with informed consent obtained, the participants would be grouped in terms of duration of the illness (0-2 years, 2-5 years and 5 or above years) and gender and then each would draw one labeled card from an opaque envelope (1=CS, 2=YS and 3=Placebo) from the clinic nurse to allocate them into one of the three groups.