Conduct a survey by questionnaire of psychiatric patients in remission at the Center for Nursing than.Viec confidante sampling was conducted according to systematic random method. (1) review and make a list of all psychiatric patients who now live in where the investigation; (2) Mark the order of mental patients in the list. Random grab one of the first two. Then the next person on the way 3 in the list to select a person until the full sample size 52.
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