1 Calo Psychiatric Center, Pingtung County, Taiwan; Graduate Institute of Medical Science, National Defense Medical Center, Taipei, Taiwan; International Graduate Program of Education and Human Development, National Sun Yat-Sen University, Kaohsiung, Taiwan; Institute of Education, National Sun Yat-Sen University, Kaohsiung, Taiwan.
2 Department of Dentistry, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.
3 Institute of Allied Health Sciences, Department of Nursing, College of Medicine, National Cheng Kung University, Tainan, Taiwan. Electronic address: forweylung@gmail.com.