Wasana Ravin และ Sara Arphorn. (2010) The prevalence and work-related factor neck and shoulder pain among critical care nursing personnel in Ramathibodi Hospital, Bangkok. Mahidol University:ม.ป.ท.Wasana Ravin และ Sara Arphorn. 2010. The prevalence and work-related factor neck and shoulder pain among critical care nursing personnel in Ramathibodi Hospital, Bangkok. ม.ป.ท.:Mahidol University;Wasana Ravin และ Sara Arphorn. The prevalence and work-related factor neck and shoulder pain among critical care nursing personnel in Ramathibodi Hospital, Bangkok. ม.ป.ท.:Mahidol University, 2010. Print.