Thanyarat Ongmekiat, LecturerÍÒ¨ÒÃÂì ¸ÑÂÃѪµì ͧ¤ìÁÕà¡ÕÂõÔDepartment of Fundamental NursingFaculty of Nursing, Mahidol UniversityTel. No. 0-2441-5333 ext 2609 thanyarat.ong@mahidol.ac.th